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Ruth B Phillips - One of the best experts on this subject based on the ideXlab platform.
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assignment of atlantic salmon salmo salar linkage groups to specific Chromosomes conservation of large syntenic blocks corresponding to whole chromosome arms in rainbow trout oncorhynchus mykiss
BMC Genetics, 2009Co-Authors: Roy G Danzmann, Ruth B Phillips, Kimberly A. Keatley, Matthew R. Morasch, Abigail B. Ventura, Krzysztof P. Lubieniecki, Ben F. Koop, William S. DavidsonAbstract:Most teleost species, especially freshwater groups such as the Esocidae which are the closest relatives of salmonids, have a karyotype comprising 25 pairs of Acrocentric Chromosomes and 48–52 chromosome arms. After the common ancestor of salmonids underwent a whole genome duplication, its karyotype would have 100 chromosome arms, and this is reflected in the modal range of 96–104 seen in extant salmonids (e.g., rainbow trout). The Atlantic salmon is an exception among the salmonids as it has 72–74 chromosome arms and its karyotype includes 12 pairs of large Acrocentric Chromosomes, which appear to be the result of tandem fusions. The purpose of this study was to integrate the Atlantic salmon's linkage map and karyotype and to compare the chromosome map with that of rainbow trout. The Atlantic salmon genetic linkage groups were assigned to specific Chromosomes in the European subspecies using fluorescence in situ hybridization with BAC probes containing genetic markers mapped to each linkage group. The genetic linkage groups were larger for metacentric Chromosomes compared to Acrocentric Chromosomes of similar size. Comparison of the Atlantic salmon chromosome map with that of rainbow trout provides strong evidence for conservation of large syntenic blocks in these species, corresponding to entire chromosome arms in the rainbow trout. It had been suggested that some of the large Acrocentric Chromosomes in Atlantic salmon are the result of tandem fusions, and that the small blocks of repetitive DNA in the middle of the arms represent the sites of chromosome fusions. The finding that the chromosomal regions on either side of the blocks of repetitive DNA within the larger Acrocentric Chromosomes correspond to different rainbow trout chromosome arms provides support for this hypothesis.
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Assignment of Atlantic salmon ( Salmo salar) linkage groups to specific Chromosomes: Conservation of large syntenic blocks corresponding to whole chromosome arms in rainbow trout ( Oncorhynchus mykiss )
BMC Genetics, 2009Co-Authors: Ruth B Phillips, Roy G Danzmann, Kimberly A. Keatley, Matthew R. Morasch, Abigail B. Ventura, Krzysztof P. Lubieniecki, Ben F. Koop, William S. DavidsonAbstract:Background: Most teleost species, especially freshwater groups such as the Esocidae which are the closest relatives of salmonids, have a karyotype comprising 25 pairs of Acrocentric Chromosomes and 48– 52 chromosome arms. After the common ancestor of salmonids underwent a whole genome duplication, its karyotype would have 100 chromosome arms, and this is reflected in the modal range of 96–104 seen in extant salmonids (e.g., rainbow trout). The Atlantic salmon is an exception among the salmonids as it has 72–74 chromosome arms and its karyotype includes 12 pairs of large Acrocentric Chromosomes, which appear to be the result of tandem fusions. The purpose of this study was to integrate the Atlantic salmon's linkage map and karyotype and to compare the chromosome map with that of rainbow trout. Results: The Atlantic salmon genetic linkage groups were assigned to specific Chromosomes in the European subspecies using fluorescence in situ hybridization with BAC probes containing genetic markers mapped to each linkage group. The genetic linkage groups were larger for metacentric Chromosomes compared to Acrocentric Chromosomes of similar size. Comparison of the Atlantic salmon chromosome map with that of rainbow trout provides strong evidence for conservation of large syntenic blocks in these species, corresponding to entire chromosome arms in the rainbow trout. Conclusion: It had been suggested that some of the large Acrocentric Chromosomes in Atlantic salmon are the result of tandem fusions, and that the small blocks of repetitive DNA in the middle of the arms represent the sites of chromosome fusions. The finding that the chromosomal regions on either side of the blocks of repetitive DNA within the larger Acrocentric Chromosomes correspond to different rainbow trout chromosome arms provides support for this hypothesis.
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molecular characterization and cytogenetic analysis of highly repeated dnas of lake trout salvelinus namaycush
Chromosoma, 1995Co-Authors: Kent M Reed, Ruth B PhillipsAbstract:The Chromosomes of lake trout (Salvelinus namaycush) contain a considerable amount of heterochromatin located at the centromeres and/or telomeres of several Chromosomes, including a sex-specific block located distally on the X chromosome. In order to investigate further the repetitive DNAs of lake trout, genomic DNA from a female was size fractionated (<600 bp) with the restriction endonuclease AluI and fragments were cloned into the bacteriophage M13. A total of 42 clones were isolated. Relative copy number of individual inserts within the lake trout genome was estimated by Southern analysis. Twelve clones were determined to be highly repetitive and were chosen for further investigation. Inserts of these clones contained sequences similar to the AluI/RsaI, EcoRI/DraI, DraI/BstEII, and MboI/BglII families reported from Arctic char (Salvelinus alpinus). The chromosomal location of several of these fragments was determined in lake trout by fluorescence in situ hybridization (FISH). Two related AluI/RsaI sequences (Type A, ∼ 140 bp, and Type B, ∼ 120 bp) showed differential hybridization. Type A hybridized to the centromeres of all metacentric as well as several Acrocentric Chromosomes. Type B hybridized to the centromeres of most Acrocentric Chromosomes. A sequence with homology to the EcoRI/DraI family hybridized to the centromeres of several Acrocentric Chromosomes. Sequences with partial similarity to the DraI/BstEII family hybridized to the major rDNA sites (nucleolar organizer regions, NORs) and several minor telomeric sites. The interstitial and telomeric heterochromatin of lake trout, including that of the X chromosome, appears to comprise sequences belonging to the MboI/BglII family.
William S. Davidson - One of the best experts on this subject based on the ideXlab platform.
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assignment of atlantic salmon salmo salar linkage groups to specific Chromosomes conservation of large syntenic blocks corresponding to whole chromosome arms in rainbow trout oncorhynchus mykiss
BMC Genetics, 2009Co-Authors: Roy G Danzmann, Ruth B Phillips, Kimberly A. Keatley, Matthew R. Morasch, Abigail B. Ventura, Krzysztof P. Lubieniecki, Ben F. Koop, William S. DavidsonAbstract:Most teleost species, especially freshwater groups such as the Esocidae which are the closest relatives of salmonids, have a karyotype comprising 25 pairs of Acrocentric Chromosomes and 48–52 chromosome arms. After the common ancestor of salmonids underwent a whole genome duplication, its karyotype would have 100 chromosome arms, and this is reflected in the modal range of 96–104 seen in extant salmonids (e.g., rainbow trout). The Atlantic salmon is an exception among the salmonids as it has 72–74 chromosome arms and its karyotype includes 12 pairs of large Acrocentric Chromosomes, which appear to be the result of tandem fusions. The purpose of this study was to integrate the Atlantic salmon's linkage map and karyotype and to compare the chromosome map with that of rainbow trout. The Atlantic salmon genetic linkage groups were assigned to specific Chromosomes in the European subspecies using fluorescence in situ hybridization with BAC probes containing genetic markers mapped to each linkage group. The genetic linkage groups were larger for metacentric Chromosomes compared to Acrocentric Chromosomes of similar size. Comparison of the Atlantic salmon chromosome map with that of rainbow trout provides strong evidence for conservation of large syntenic blocks in these species, corresponding to entire chromosome arms in the rainbow trout. It had been suggested that some of the large Acrocentric Chromosomes in Atlantic salmon are the result of tandem fusions, and that the small blocks of repetitive DNA in the middle of the arms represent the sites of chromosome fusions. The finding that the chromosomal regions on either side of the blocks of repetitive DNA within the larger Acrocentric Chromosomes correspond to different rainbow trout chromosome arms provides support for this hypothesis.
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Assignment of Atlantic salmon ( Salmo salar) linkage groups to specific Chromosomes: Conservation of large syntenic blocks corresponding to whole chromosome arms in rainbow trout ( Oncorhynchus mykiss )
BMC Genetics, 2009Co-Authors: Ruth B Phillips, Roy G Danzmann, Kimberly A. Keatley, Matthew R. Morasch, Abigail B. Ventura, Krzysztof P. Lubieniecki, Ben F. Koop, William S. DavidsonAbstract:Background: Most teleost species, especially freshwater groups such as the Esocidae which are the closest relatives of salmonids, have a karyotype comprising 25 pairs of Acrocentric Chromosomes and 48– 52 chromosome arms. After the common ancestor of salmonids underwent a whole genome duplication, its karyotype would have 100 chromosome arms, and this is reflected in the modal range of 96–104 seen in extant salmonids (e.g., rainbow trout). The Atlantic salmon is an exception among the salmonids as it has 72–74 chromosome arms and its karyotype includes 12 pairs of large Acrocentric Chromosomes, which appear to be the result of tandem fusions. The purpose of this study was to integrate the Atlantic salmon's linkage map and karyotype and to compare the chromosome map with that of rainbow trout. Results: The Atlantic salmon genetic linkage groups were assigned to specific Chromosomes in the European subspecies using fluorescence in situ hybridization with BAC probes containing genetic markers mapped to each linkage group. The genetic linkage groups were larger for metacentric Chromosomes compared to Acrocentric Chromosomes of similar size. Comparison of the Atlantic salmon chromosome map with that of rainbow trout provides strong evidence for conservation of large syntenic blocks in these species, corresponding to entire chromosome arms in the rainbow trout. Conclusion: It had been suggested that some of the large Acrocentric Chromosomes in Atlantic salmon are the result of tandem fusions, and that the small blocks of repetitive DNA in the middle of the arms represent the sites of chromosome fusions. The finding that the chromosomal regions on either side of the blocks of repetitive DNA within the larger Acrocentric Chromosomes correspond to different rainbow trout chromosome arms provides support for this hypothesis.
Abigail B. Ventura - One of the best experts on this subject based on the ideXlab platform.
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assignment of atlantic salmon salmo salar linkage groups to specific Chromosomes conservation of large syntenic blocks corresponding to whole chromosome arms in rainbow trout oncorhynchus mykiss
BMC Genetics, 2009Co-Authors: Roy G Danzmann, Ruth B Phillips, Kimberly A. Keatley, Matthew R. Morasch, Abigail B. Ventura, Krzysztof P. Lubieniecki, Ben F. Koop, William S. DavidsonAbstract:Most teleost species, especially freshwater groups such as the Esocidae which are the closest relatives of salmonids, have a karyotype comprising 25 pairs of Acrocentric Chromosomes and 48–52 chromosome arms. After the common ancestor of salmonids underwent a whole genome duplication, its karyotype would have 100 chromosome arms, and this is reflected in the modal range of 96–104 seen in extant salmonids (e.g., rainbow trout). The Atlantic salmon is an exception among the salmonids as it has 72–74 chromosome arms and its karyotype includes 12 pairs of large Acrocentric Chromosomes, which appear to be the result of tandem fusions. The purpose of this study was to integrate the Atlantic salmon's linkage map and karyotype and to compare the chromosome map with that of rainbow trout. The Atlantic salmon genetic linkage groups were assigned to specific Chromosomes in the European subspecies using fluorescence in situ hybridization with BAC probes containing genetic markers mapped to each linkage group. The genetic linkage groups were larger for metacentric Chromosomes compared to Acrocentric Chromosomes of similar size. Comparison of the Atlantic salmon chromosome map with that of rainbow trout provides strong evidence for conservation of large syntenic blocks in these species, corresponding to entire chromosome arms in the rainbow trout. It had been suggested that some of the large Acrocentric Chromosomes in Atlantic salmon are the result of tandem fusions, and that the small blocks of repetitive DNA in the middle of the arms represent the sites of chromosome fusions. The finding that the chromosomal regions on either side of the blocks of repetitive DNA within the larger Acrocentric Chromosomes correspond to different rainbow trout chromosome arms provides support for this hypothesis.
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Assignment of Atlantic salmon ( Salmo salar) linkage groups to specific Chromosomes: Conservation of large syntenic blocks corresponding to whole chromosome arms in rainbow trout ( Oncorhynchus mykiss )
BMC Genetics, 2009Co-Authors: Ruth B Phillips, Roy G Danzmann, Kimberly A. Keatley, Matthew R. Morasch, Abigail B. Ventura, Krzysztof P. Lubieniecki, Ben F. Koop, William S. DavidsonAbstract:Background: Most teleost species, especially freshwater groups such as the Esocidae which are the closest relatives of salmonids, have a karyotype comprising 25 pairs of Acrocentric Chromosomes and 48– 52 chromosome arms. After the common ancestor of salmonids underwent a whole genome duplication, its karyotype would have 100 chromosome arms, and this is reflected in the modal range of 96–104 seen in extant salmonids (e.g., rainbow trout). The Atlantic salmon is an exception among the salmonids as it has 72–74 chromosome arms and its karyotype includes 12 pairs of large Acrocentric Chromosomes, which appear to be the result of tandem fusions. The purpose of this study was to integrate the Atlantic salmon's linkage map and karyotype and to compare the chromosome map with that of rainbow trout. Results: The Atlantic salmon genetic linkage groups were assigned to specific Chromosomes in the European subspecies using fluorescence in situ hybridization with BAC probes containing genetic markers mapped to each linkage group. The genetic linkage groups were larger for metacentric Chromosomes compared to Acrocentric Chromosomes of similar size. Comparison of the Atlantic salmon chromosome map with that of rainbow trout provides strong evidence for conservation of large syntenic blocks in these species, corresponding to entire chromosome arms in the rainbow trout. Conclusion: It had been suggested that some of the large Acrocentric Chromosomes in Atlantic salmon are the result of tandem fusions, and that the small blocks of repetitive DNA in the middle of the arms represent the sites of chromosome fusions. The finding that the chromosomal regions on either side of the blocks of repetitive DNA within the larger Acrocentric Chromosomes correspond to different rainbow trout chromosome arms provides support for this hypothesis.
Kimberly A. Keatley - One of the best experts on this subject based on the ideXlab platform.
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assignment of atlantic salmon salmo salar linkage groups to specific Chromosomes conservation of large syntenic blocks corresponding to whole chromosome arms in rainbow trout oncorhynchus mykiss
BMC Genetics, 2009Co-Authors: Roy G Danzmann, Ruth B Phillips, Kimberly A. Keatley, Matthew R. Morasch, Abigail B. Ventura, Krzysztof P. Lubieniecki, Ben F. Koop, William S. DavidsonAbstract:Most teleost species, especially freshwater groups such as the Esocidae which are the closest relatives of salmonids, have a karyotype comprising 25 pairs of Acrocentric Chromosomes and 48–52 chromosome arms. After the common ancestor of salmonids underwent a whole genome duplication, its karyotype would have 100 chromosome arms, and this is reflected in the modal range of 96–104 seen in extant salmonids (e.g., rainbow trout). The Atlantic salmon is an exception among the salmonids as it has 72–74 chromosome arms and its karyotype includes 12 pairs of large Acrocentric Chromosomes, which appear to be the result of tandem fusions. The purpose of this study was to integrate the Atlantic salmon's linkage map and karyotype and to compare the chromosome map with that of rainbow trout. The Atlantic salmon genetic linkage groups were assigned to specific Chromosomes in the European subspecies using fluorescence in situ hybridization with BAC probes containing genetic markers mapped to each linkage group. The genetic linkage groups were larger for metacentric Chromosomes compared to Acrocentric Chromosomes of similar size. Comparison of the Atlantic salmon chromosome map with that of rainbow trout provides strong evidence for conservation of large syntenic blocks in these species, corresponding to entire chromosome arms in the rainbow trout. It had been suggested that some of the large Acrocentric Chromosomes in Atlantic salmon are the result of tandem fusions, and that the small blocks of repetitive DNA in the middle of the arms represent the sites of chromosome fusions. The finding that the chromosomal regions on either side of the blocks of repetitive DNA within the larger Acrocentric Chromosomes correspond to different rainbow trout chromosome arms provides support for this hypothesis.
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Assignment of Atlantic salmon ( Salmo salar) linkage groups to specific Chromosomes: Conservation of large syntenic blocks corresponding to whole chromosome arms in rainbow trout ( Oncorhynchus mykiss )
BMC Genetics, 2009Co-Authors: Ruth B Phillips, Roy G Danzmann, Kimberly A. Keatley, Matthew R. Morasch, Abigail B. Ventura, Krzysztof P. Lubieniecki, Ben F. Koop, William S. DavidsonAbstract:Background: Most teleost species, especially freshwater groups such as the Esocidae which are the closest relatives of salmonids, have a karyotype comprising 25 pairs of Acrocentric Chromosomes and 48– 52 chromosome arms. After the common ancestor of salmonids underwent a whole genome duplication, its karyotype would have 100 chromosome arms, and this is reflected in the modal range of 96–104 seen in extant salmonids (e.g., rainbow trout). The Atlantic salmon is an exception among the salmonids as it has 72–74 chromosome arms and its karyotype includes 12 pairs of large Acrocentric Chromosomes, which appear to be the result of tandem fusions. The purpose of this study was to integrate the Atlantic salmon's linkage map and karyotype and to compare the chromosome map with that of rainbow trout. Results: The Atlantic salmon genetic linkage groups were assigned to specific Chromosomes in the European subspecies using fluorescence in situ hybridization with BAC probes containing genetic markers mapped to each linkage group. The genetic linkage groups were larger for metacentric Chromosomes compared to Acrocentric Chromosomes of similar size. Comparison of the Atlantic salmon chromosome map with that of rainbow trout provides strong evidence for conservation of large syntenic blocks in these species, corresponding to entire chromosome arms in the rainbow trout. Conclusion: It had been suggested that some of the large Acrocentric Chromosomes in Atlantic salmon are the result of tandem fusions, and that the small blocks of repetitive DNA in the middle of the arms represent the sites of chromosome fusions. The finding that the chromosomal regions on either side of the blocks of repetitive DNA within the larger Acrocentric Chromosomes correspond to different rainbow trout chromosome arms provides support for this hypothesis.
Matthew R. Morasch - One of the best experts on this subject based on the ideXlab platform.
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assignment of atlantic salmon salmo salar linkage groups to specific Chromosomes conservation of large syntenic blocks corresponding to whole chromosome arms in rainbow trout oncorhynchus mykiss
BMC Genetics, 2009Co-Authors: Roy G Danzmann, Ruth B Phillips, Kimberly A. Keatley, Matthew R. Morasch, Abigail B. Ventura, Krzysztof P. Lubieniecki, Ben F. Koop, William S. DavidsonAbstract:Most teleost species, especially freshwater groups such as the Esocidae which are the closest relatives of salmonids, have a karyotype comprising 25 pairs of Acrocentric Chromosomes and 48–52 chromosome arms. After the common ancestor of salmonids underwent a whole genome duplication, its karyotype would have 100 chromosome arms, and this is reflected in the modal range of 96–104 seen in extant salmonids (e.g., rainbow trout). The Atlantic salmon is an exception among the salmonids as it has 72–74 chromosome arms and its karyotype includes 12 pairs of large Acrocentric Chromosomes, which appear to be the result of tandem fusions. The purpose of this study was to integrate the Atlantic salmon's linkage map and karyotype and to compare the chromosome map with that of rainbow trout. The Atlantic salmon genetic linkage groups were assigned to specific Chromosomes in the European subspecies using fluorescence in situ hybridization with BAC probes containing genetic markers mapped to each linkage group. The genetic linkage groups were larger for metacentric Chromosomes compared to Acrocentric Chromosomes of similar size. Comparison of the Atlantic salmon chromosome map with that of rainbow trout provides strong evidence for conservation of large syntenic blocks in these species, corresponding to entire chromosome arms in the rainbow trout. It had been suggested that some of the large Acrocentric Chromosomes in Atlantic salmon are the result of tandem fusions, and that the small blocks of repetitive DNA in the middle of the arms represent the sites of chromosome fusions. The finding that the chromosomal regions on either side of the blocks of repetitive DNA within the larger Acrocentric Chromosomes correspond to different rainbow trout chromosome arms provides support for this hypothesis.
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Assignment of Atlantic salmon ( Salmo salar) linkage groups to specific Chromosomes: Conservation of large syntenic blocks corresponding to whole chromosome arms in rainbow trout ( Oncorhynchus mykiss )
BMC Genetics, 2009Co-Authors: Ruth B Phillips, Roy G Danzmann, Kimberly A. Keatley, Matthew R. Morasch, Abigail B. Ventura, Krzysztof P. Lubieniecki, Ben F. Koop, William S. DavidsonAbstract:Background: Most teleost species, especially freshwater groups such as the Esocidae which are the closest relatives of salmonids, have a karyotype comprising 25 pairs of Acrocentric Chromosomes and 48– 52 chromosome arms. After the common ancestor of salmonids underwent a whole genome duplication, its karyotype would have 100 chromosome arms, and this is reflected in the modal range of 96–104 seen in extant salmonids (e.g., rainbow trout). The Atlantic salmon is an exception among the salmonids as it has 72–74 chromosome arms and its karyotype includes 12 pairs of large Acrocentric Chromosomes, which appear to be the result of tandem fusions. The purpose of this study was to integrate the Atlantic salmon's linkage map and karyotype and to compare the chromosome map with that of rainbow trout. Results: The Atlantic salmon genetic linkage groups were assigned to specific Chromosomes in the European subspecies using fluorescence in situ hybridization with BAC probes containing genetic markers mapped to each linkage group. The genetic linkage groups were larger for metacentric Chromosomes compared to Acrocentric Chromosomes of similar size. Comparison of the Atlantic salmon chromosome map with that of rainbow trout provides strong evidence for conservation of large syntenic blocks in these species, corresponding to entire chromosome arms in the rainbow trout. Conclusion: It had been suggested that some of the large Acrocentric Chromosomes in Atlantic salmon are the result of tandem fusions, and that the small blocks of repetitive DNA in the middle of the arms represent the sites of chromosome fusions. The finding that the chromosomal regions on either side of the blocks of repetitive DNA within the larger Acrocentric Chromosomes correspond to different rainbow trout chromosome arms provides support for this hypothesis.
