The Experts below are selected from a list of 246 Experts worldwide ranked by ideXlab platform
Eviatar Nevo - One of the best experts on this subject based on the ideXlab platform.
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adaptation of Pelage color and pigment variations in israeli subterranean blind mole rats spalax ehrenbergi
PLOS ONE, 2013Co-Authors: Natarajan Singaravelan, Avigdor Beiles, Shay Tzur, Shirli Belifante, Tomas Pavlicek, Kazumasa Wakamatsu, Eviatar NevoAbstract:The word "ehrenbergi," as part of a species name, was incorrectly capitalized in the title. The correct title is: Adaptation of Pelage Color and Pigment Variations in Israeli Subterranean Blind Mole Rats, Spalax ehrenbergi. The correct citation is: Singaravelan N, Raz S, Tzur S, Belifante S, Pavlicek T, et al. (2013) Adaptation of Pelage Color and Pigment Variations in Israeli Subterranean Blind Mole Rats, Spalax ehrenbergi. PLoS ONE 8(7): e69346. doi:10.1371/journal.pone.0069346.
M J Daniels - One of the best experts on this subject based on the ideXlab platform.
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Genetic diversity and introgression in the Scottish wildcat
Molecular Ecology, 2001Co-Authors: Mark Beaumont, J. K. Pritchard, D. Gottelli, E M Barratt, M J Daniels, Andrew C Kitchener, Michael William BrufordAbstract:This paper describes a genetic analysis of wild-living cats in Scotland. Samples from 230 wild-living Scottish cats (including 13 museum skins) and 74 house cats from England and Scotland were surveyed for nine microsatellite loci. Pelage characteristics of the wild-living cats were recorded, and the cats were then grouped into five separate categories depending on the degree to which they conformed to the characteristics attributed to Felis silvestris Schreber, 1775. Allele frequency differences between the morphological groups are greater than those among the three house cat samples. Analysis of genetic distances suggests that more of the differences between individuals can be explained by Pelage than geographical proximity, and that Pelage and geographical location are not confounded. Ordination of the genetic distances suggests two main groups of wild-living cats, with intermediates, and one group is genetically very similar to the house cats, while the other group contains all cats taxonomically identified as wildcat based on morphology. A genetic mixture analysis gives similar results to the ordination, but also suggests that the genotypes of a substantial number of cats in the wildcat group are drawn from a gene pool with genotypes in approximately equilibrium proportions. We argue that this is evidence that these cats do not have very recent domestic ancestry. However, from the morphological data it is highly likely that this gene pool also contains a contribution from earlier introgression of domestic cat genes.
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morphological and Pelage characteristics of wild living cats in scotland implications for defining the wildcat
Journal of Zoology, 1998Co-Authors: M J Daniels, Andrew C Kitchener, D Balharry, D Hirst, R J AspinallAbstract:The indigenous wildcat, Felis silvestris Schreber, 1775, and the introduced domestic cat, F. catus L., have been sympatric in Britain for more than 2000 years. As a result of interbreeding, any distinction between these two forms has become obscured, although a range of morphological criteria (Pelage patterns, body measurements, gut lengths, skull morphometrics) and genetic techniques (immunological distances, electrophoresis, DNA hybridization) have been used previously to distinguish between them. A sample of 333 wild-living cats in Scotland was assessed for coloration and markings of Pelage, standard body measurements and weights, and (for carcasses only) limb bone lengths, intestine lengths, and skull measurements. These cats were also classified as wildcat, hybrid, or domestic cat according to traditional Pelage criteria. Multivariate analyses on these variables, for adult cats, failed to show any clearly distinct groups. When each of the variables was analysed separately, only the distribution of limb bone and intestine length measurements suggested the possibility that two groups might exist. Group 1 cats had short intestines and long limb bones. Group 2 consisted of cats with long intestines and short limb bones. Although the characteristics defining cats in Group 1 were similar to those traditionally associated with wildcats, they exhibited a much broader range of Pelage and coloration than traditionally described. The groups exhibited a degree of geographical separation. The distribution of Group 1 cats was found to be related to certain environmental variables, namely mean annual temperature and land with poor potential for forestry and agriculture, suggesting that there may be a biological basis for the separation. The implications of these results on the identification and taxonomy of the wildcat are significant. The concept of the wildcat and the domestic cat as separate species can be challenged. The paper highlights the complexity and difficulties for conventional taxonomy when used as a means for distinguishing between a wild type and its domesticated form where there is interbreeding.
R J Aspinall - One of the best experts on this subject based on the ideXlab platform.
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morphological and Pelage characteristics of wild living cats in scotland implications for defining the wildcat
Journal of Zoology, 1998Co-Authors: M J Daniels, Andrew C Kitchener, D Balharry, D Hirst, R J AspinallAbstract:The indigenous wildcat, Felis silvestris Schreber, 1775, and the introduced domestic cat, F. catus L., have been sympatric in Britain for more than 2000 years. As a result of interbreeding, any distinction between these two forms has become obscured, although a range of morphological criteria (Pelage patterns, body measurements, gut lengths, skull morphometrics) and genetic techniques (immunological distances, electrophoresis, DNA hybridization) have been used previously to distinguish between them. A sample of 333 wild-living cats in Scotland was assessed for coloration and markings of Pelage, standard body measurements and weights, and (for carcasses only) limb bone lengths, intestine lengths, and skull measurements. These cats were also classified as wildcat, hybrid, or domestic cat according to traditional Pelage criteria. Multivariate analyses on these variables, for adult cats, failed to show any clearly distinct groups. When each of the variables was analysed separately, only the distribution of limb bone and intestine length measurements suggested the possibility that two groups might exist. Group 1 cats had short intestines and long limb bones. Group 2 consisted of cats with long intestines and short limb bones. Although the characteristics defining cats in Group 1 were similar to those traditionally associated with wildcats, they exhibited a much broader range of Pelage and coloration than traditionally described. The groups exhibited a degree of geographical separation. The distribution of Group 1 cats was found to be related to certain environmental variables, namely mean annual temperature and land with poor potential for forestry and agriculture, suggesting that there may be a biological basis for the separation. The implications of these results on the identification and taxonomy of the wildcat are significant. The concept of the wildcat and the domestic cat as separate species can be challenged. The paper highlights the complexity and difficulties for conventional taxonomy when used as a means for distinguishing between a wild type and its domesticated form where there is interbreeding.
Andrew C Kitchener - One of the best experts on this subject based on the ideXlab platform.
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Genetic diversity and introgression in the Scottish wildcat
Molecular Ecology, 2001Co-Authors: Mark Beaumont, J. K. Pritchard, D. Gottelli, E M Barratt, M J Daniels, Andrew C Kitchener, Michael William BrufordAbstract:This paper describes a genetic analysis of wild-living cats in Scotland. Samples from 230 wild-living Scottish cats (including 13 museum skins) and 74 house cats from England and Scotland were surveyed for nine microsatellite loci. Pelage characteristics of the wild-living cats were recorded, and the cats were then grouped into five separate categories depending on the degree to which they conformed to the characteristics attributed to Felis silvestris Schreber, 1775. Allele frequency differences between the morphological groups are greater than those among the three house cat samples. Analysis of genetic distances suggests that more of the differences between individuals can be explained by Pelage than geographical proximity, and that Pelage and geographical location are not confounded. Ordination of the genetic distances suggests two main groups of wild-living cats, with intermediates, and one group is genetically very similar to the house cats, while the other group contains all cats taxonomically identified as wildcat based on morphology. A genetic mixture analysis gives similar results to the ordination, but also suggests that the genotypes of a substantial number of cats in the wildcat group are drawn from a gene pool with genotypes in approximately equilibrium proportions. We argue that this is evidence that these cats do not have very recent domestic ancestry. However, from the morphological data it is highly likely that this gene pool also contains a contribution from earlier introgression of domestic cat genes.
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morphological and Pelage characteristics of wild living cats in scotland implications for defining the wildcat
Journal of Zoology, 1998Co-Authors: M J Daniels, Andrew C Kitchener, D Balharry, D Hirst, R J AspinallAbstract:The indigenous wildcat, Felis silvestris Schreber, 1775, and the introduced domestic cat, F. catus L., have been sympatric in Britain for more than 2000 years. As a result of interbreeding, any distinction between these two forms has become obscured, although a range of morphological criteria (Pelage patterns, body measurements, gut lengths, skull morphometrics) and genetic techniques (immunological distances, electrophoresis, DNA hybridization) have been used previously to distinguish between them. A sample of 333 wild-living cats in Scotland was assessed for coloration and markings of Pelage, standard body measurements and weights, and (for carcasses only) limb bone lengths, intestine lengths, and skull measurements. These cats were also classified as wildcat, hybrid, or domestic cat according to traditional Pelage criteria. Multivariate analyses on these variables, for adult cats, failed to show any clearly distinct groups. When each of the variables was analysed separately, only the distribution of limb bone and intestine length measurements suggested the possibility that two groups might exist. Group 1 cats had short intestines and long limb bones. Group 2 consisted of cats with long intestines and short limb bones. Although the characteristics defining cats in Group 1 were similar to those traditionally associated with wildcats, they exhibited a much broader range of Pelage and coloration than traditionally described. The groups exhibited a degree of geographical separation. The distribution of Group 1 cats was found to be related to certain environmental variables, namely mean annual temperature and land with poor potential for forestry and agriculture, suggesting that there may be a biological basis for the separation. The implications of these results on the identification and taxonomy of the wildcat are significant. The concept of the wildcat and the domestic cat as separate species can be challenged. The paper highlights the complexity and difficulties for conventional taxonomy when used as a means for distinguishing between a wild type and its domesticated form where there is interbreeding.
Natarajan Singaravelan - One of the best experts on this subject based on the ideXlab platform.
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adaptation of Pelage color and pigment variations in israeli subterranean blind mole rats spalax ehrenbergi
PLOS ONE, 2013Co-Authors: Natarajan Singaravelan, Avigdor Beiles, Shay Tzur, Shirli Belifante, Tomas Pavlicek, Kazumasa Wakamatsu, Eviatar NevoAbstract:The word "ehrenbergi," as part of a species name, was incorrectly capitalized in the title. The correct title is: Adaptation of Pelage Color and Pigment Variations in Israeli Subterranean Blind Mole Rats, Spalax ehrenbergi. The correct citation is: Singaravelan N, Raz S, Tzur S, Belifante S, Pavlicek T, et al. (2013) Adaptation of Pelage Color and Pigment Variations in Israeli Subterranean Blind Mole Rats, Spalax ehrenbergi. PLoS ONE 8(7): e69346. doi:10.1371/journal.pone.0069346.
