Genetic variability of Brazilian wheat germplasm obtained by high-density SNP genotyping
Abstract The aim of this study was to evaluate the genetic diversity of the wheat germplasm using high-density genotyping with SNP markers. A set of 211 wheat varieties genotyped with 35,142 SNP markers were used in the experiment. Genetic distances ranged from 0.013 to 0.471, with the highest frequency of distances varying between 0.31 and 0.40. In the cluster analysis by the UPGMA method, 81% of the varieties were clustered in three groups. Genetic variability in the Brazilian wheat germplasm has remained constant for over 70 years. Mean genetic distances among the varieties developed in each decade ranged from 0.33 to 0.34. A trend of genetic distance between genotypes from different eras has been observed over time as a result of breeding. Results described in this study can help Brazilian wheat breeders to manage more adequately genetic variability in the Brazilian wheat germplasm.
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Crop Breeding and Applied Biotechnology
2018
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oai:scielo:S1984-703320180004003992018-12-03Genetic variability of Brazilian wheat germplasm obtained by high-density SNP genotypingScherlosky,AdrianaMarchioro,Volmir SérgioFranco,Francisco de AssisBraccini,Alessandro LuccaSchuster,Ivan Triticum aestivum (L.) genetic variability genotypes from different eras breeding Abstract The aim of this study was to evaluate the genetic diversity of the wheat germplasm using high-density genotyping with SNP markers. A set of 211 wheat varieties genotyped with 35,142 SNP markers were used in the experiment. Genetic distances ranged from 0.013 to 0.471, with the highest frequency of distances varying between 0.31 and 0.40. In the cluster analysis by the UPGMA method, 81% of the varieties were clustered in three groups. Genetic variability in the Brazilian wheat germplasm has remained constant for over 70 years. Mean genetic distances among the varieties developed in each decade ranged from 0.33 to 0.34. A trend of genetic distance between genotypes from different eras has been observed over time as a result of breeding. Results described in this study can help Brazilian wheat breeders to manage more adequately genetic variability in the Brazilian wheat germplasm.info:eu-repo/semantics/openAccessCrop Breeding and Applied BiotechnologyCrop Breeding and Applied Biotechnology v.18 n.4 20182018-12-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332018000400399en10.1590/1984-70332018v18n4a59 |
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Scherlosky,Adriana Marchioro,Volmir Sérgio Franco,Francisco de Assis Braccini,Alessandro Lucca Schuster,Ivan |
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Scherlosky,Adriana Marchioro,Volmir Sérgio Franco,Francisco de Assis Braccini,Alessandro Lucca Schuster,Ivan Genetic variability of Brazilian wheat germplasm obtained by high-density SNP genotyping |
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Scherlosky,Adriana Marchioro,Volmir Sérgio Franco,Francisco de Assis Braccini,Alessandro Lucca Schuster,Ivan |
author_sort |
Scherlosky,Adriana |
title |
Genetic variability of Brazilian wheat germplasm obtained by high-density SNP genotyping |
title_short |
Genetic variability of Brazilian wheat germplasm obtained by high-density SNP genotyping |
title_full |
Genetic variability of Brazilian wheat germplasm obtained by high-density SNP genotyping |
title_fullStr |
Genetic variability of Brazilian wheat germplasm obtained by high-density SNP genotyping |
title_full_unstemmed |
Genetic variability of Brazilian wheat germplasm obtained by high-density SNP genotyping |
title_sort |
genetic variability of brazilian wheat germplasm obtained by high-density snp genotyping |
description |
Abstract The aim of this study was to evaluate the genetic diversity of the wheat germplasm using high-density genotyping with SNP markers. A set of 211 wheat varieties genotyped with 35,142 SNP markers were used in the experiment. Genetic distances ranged from 0.013 to 0.471, with the highest frequency of distances varying between 0.31 and 0.40. In the cluster analysis by the UPGMA method, 81% of the varieties were clustered in three groups. Genetic variability in the Brazilian wheat germplasm has remained constant for over 70 years. Mean genetic distances among the varieties developed in each decade ranged from 0.33 to 0.34. A trend of genetic distance between genotypes from different eras has been observed over time as a result of breeding. Results described in this study can help Brazilian wheat breeders to manage more adequately genetic variability in the Brazilian wheat germplasm. |
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Crop Breeding and Applied Biotechnology |
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2018 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332018000400399 |
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