The Experts below are selected from a list of 17067 Experts worldwide ranked by ideXlab platform
E Nissila - One of the best experts on this subject based on the ideXlab platform.
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aflp genetic polymorphism in wild barley hordeum spontaneum populations in israel
Theoretical and Applied Genetics, 2003Co-Authors: Timo Turpeinen, E Nevo, T Vanhala, E NissilaAbstract:The genetic diversity produced by the amplified fragment length polymorphism (AFLP) method was studied in 94 genotypes of wild barley, Hordeum spontaneum (C. Koch) Thell., originating from ten ecologically and geographically different locations in Israel. Eight primer pairs produced 204 discernible loci of which 189 (93%) were polymorphic. Each genotype had a unique banding profile and the genetic similarity coefficient varied between 0.74 and 0.98. The phenogram generated from these similarities by the UPGMA method did not group genotypes strictly according to their geographical origin, which pattern was also seen in the Principal Coordinate (PCO) plot. Genetic diversity was larger within (69%) than among (31%) populations. Associations between ecogeographical variables and the mean gene diversity were found at one primer pair. The results are discussed and compared with data obtained by the simple sequence repeat (SSR) method.
Timo Turpeinen - One of the best experts on this subject based on the ideXlab platform.
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aflp genetic polymorphism in wild barley hordeum spontaneum populations in israel
Theoretical and Applied Genetics, 2003Co-Authors: Timo Turpeinen, E Nevo, T Vanhala, E NissilaAbstract:The genetic diversity produced by the amplified fragment length polymorphism (AFLP) method was studied in 94 genotypes of wild barley, Hordeum spontaneum (C. Koch) Thell., originating from ten ecologically and geographically different locations in Israel. Eight primer pairs produced 204 discernible loci of which 189 (93%) were polymorphic. Each genotype had a unique banding profile and the genetic similarity coefficient varied between 0.74 and 0.98. The phenogram generated from these similarities by the UPGMA method did not group genotypes strictly according to their geographical origin, which pattern was also seen in the Principal Coordinate (PCO) plot. Genetic diversity was larger within (69%) than among (31%) populations. Associations between ecogeographical variables and the mean gene diversity were found at one primer pair. The results are discussed and compared with data obtained by the simple sequence repeat (SSR) method.
J I Cubero - One of the best experts on this subject based on the ideXlab platform.
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genotype environment interaction in faba bean comparison of ammi and Principal Coordinate models
Field Crops Research, 1996Co-Authors: F Flores, M T Moreno, A Martinez, J I CuberoAbstract:Abstract This study analyses the genotype-by-environment (G × E) interaction of 11 genotypes of Vicia faba L., grown in 17 environments in Andalucia (Southern Spain) by two multivariate methods (AMMI and Principal Coordinate Analysis). Results of the stability analyses indicated that the most stable genotypes for resistance were not the same as those for yield. However three, L1, L2 and VF1071, were by far the most Orobanche -resistant materials and were as productive as well-established cultivars, but their yields showed low stability among environments. Progress in selection for both Orobanche resistance and yield is hampered by large environmental variation between locations. More breeding effort is needed in these three experimental genotypes in order to improve the yield stability and therefore acceptability to farmers. Multivariate analysis has shown its advantage as a helpful tool in identifying the best genotypes for a new cycles of crossing and selection. For the cultivars and environments analyzed in this study, the two methods gave equally satisfactory results in detecting cultivars that perform well and remain stable under different environment conditions.
E Nevo - One of the best experts on this subject based on the ideXlab platform.
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aflp genetic polymorphism in wild barley hordeum spontaneum populations in israel
Theoretical and Applied Genetics, 2003Co-Authors: Timo Turpeinen, E Nevo, T Vanhala, E NissilaAbstract:The genetic diversity produced by the amplified fragment length polymorphism (AFLP) method was studied in 94 genotypes of wild barley, Hordeum spontaneum (C. Koch) Thell., originating from ten ecologically and geographically different locations in Israel. Eight primer pairs produced 204 discernible loci of which 189 (93%) were polymorphic. Each genotype had a unique banding profile and the genetic similarity coefficient varied between 0.74 and 0.98. The phenogram generated from these similarities by the UPGMA method did not group genotypes strictly according to their geographical origin, which pattern was also seen in the Principal Coordinate (PCO) plot. Genetic diversity was larger within (69%) than among (31%) populations. Associations between ecogeographical variables and the mean gene diversity were found at one primer pair. The results are discussed and compared with data obtained by the simple sequence repeat (SSR) method.
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aflp variation in wild barley hordeum spontaneum c koch with reference to salt tolerance and associated ecogeography
Genome, 1997Co-Authors: Hassan Pakniyat, E Nevo, W Powell, E Baird, L L Handley, David Robinson, C M Scrimgeour, Christine A Hackett, B P Forster, P D S CaligariAbstract:Thirty-nine genotypes of Hordeum spontaneum were selected from three geographically separated areas (southwestern, northern, and southeastern) of the Fertile Crescent. The lines were subject to AFLP (amplified fragment length polymorphism) analysis from which a similarity matrix was produced. A dendrogram of the data showed, with two exceptions, that the genotypes grouped together according to area of origin. This was confirmed by Principal Coordinate analysis in which the first Principal Coordinate separated the genotypes of the southwestern area from the other two areas, which in turn could be separated by the second Principal Coordinate. While genotypes from the same site of origin can exhibit very similar AFLP profiles, sharp genetic differences were detected between genotypes separated by relatively short distances. Thirty of the 39 genotypes were subjected to hydroculture salt tolerance tests. These were analysed for shoot Na+ content and carbon isotope composition (δ13C) after 4 weeks of treatment ...
T Vanhala - One of the best experts on this subject based on the ideXlab platform.
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aflp genetic polymorphism in wild barley hordeum spontaneum populations in israel
Theoretical and Applied Genetics, 2003Co-Authors: Timo Turpeinen, E Nevo, T Vanhala, E NissilaAbstract:The genetic diversity produced by the amplified fragment length polymorphism (AFLP) method was studied in 94 genotypes of wild barley, Hordeum spontaneum (C. Koch) Thell., originating from ten ecologically and geographically different locations in Israel. Eight primer pairs produced 204 discernible loci of which 189 (93%) were polymorphic. Each genotype had a unique banding profile and the genetic similarity coefficient varied between 0.74 and 0.98. The phenogram generated from these similarities by the UPGMA method did not group genotypes strictly according to their geographical origin, which pattern was also seen in the Principal Coordinate (PCO) plot. Genetic diversity was larger within (69%) than among (31%) populations. Associations between ecogeographical variables and the mean gene diversity were found at one primer pair. The results are discussed and compared with data obtained by the simple sequence repeat (SSR) method.
