Genetic Diversity Between Two Widely Grown Wheat Cultivars Bainong AK58 and Zhoumai 18

doi:10.7668/hbnxb.2015.03.014

Abstract

Abstract: To analysis the genetic diversities between Bainong AK58 and Zhoumai18,agronomic traits and 305 SSR Markers distributing across the whole genome of wheat were used in this study.Significant differences were found for plant height,1000-grain weight and spike number per unit area,where Bainong AK58 had shorter stature and more spike number per unit area than Zhoumai 18.SSR data revealed that 130 of three hundred and five SSR markers showed polymorphism between Bainong AK58 and Zhoumai 18,and the rate of polymorphic markers occupied 42.6%.The numbers of polymorphic markers in A,B and D genomes were 34,37 and 37,and the rates were B (43.9%)>A (37.1%)>D (33.5%).The genetic differences were also found to be unbalanced on either 7 homoeologous groups or 21 wheat chromosomes.Among 7 homoeologous groups,the most polymorphic markers (49.3%) were found in homoeologous groups 5.On chromosomal level,more genetic differences were found on chromosomes 3B,5B,7B and 4A,where the rates of polymorphic markers were more than 50%,respectively.These different genomic regions found between Bainong AK58 and Zhoumai 18 in this study should be further studied.

Key words: Wheat, Bainong AK58, Zhoumai 18, Genetic diversity

CLC Number:

S512.03

XU Xin. Genetic Diversity Between Two Widely Grown Wheat Cultivars Bainong AK58 and Zhoumai 18[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2015, 30(3): 73-76. doi: 10.7668/hbnxb.2015.03.014.

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