Karyotype Analysis of Five Wild Elymus Species of Qinghai-Tibet Plateau
The karyotype of five wild Elymus species of Qinghai-Tibet Plateau were determined by root tip squash method.Karyotype analysis results showed that all of the Elymus had satellites in five populations and the karyotype formulae in those materials were: DL population, 2n =6x =42 =32m+ 10sm, belonging to 2B type; DX population, 2n =4x =28 =2M+26m, belonging to 1B type; SN population, 2n =4x =28 =26m + 2sm, belonging to 2N type; NQ population, n =4x =28 =20m + 8sm, belonging to 2A type; RB population, 2n =6x =42 =38m + 4sm, belonging to 1A type.Chromosome variation and degrees of evolution of these five species was DL, SN, NA, DX and RB from high to low level.This study will improve the understanding of the genetic diversity of Elymus of Qinghai-Tibet Plateau and provide effective evidence on genetic relationship and crop breeding.
Elymus germplasm karyotype analysis Qinghai-Tibet Plateau
Pan Zhang Peizhi Yang Tianming Hu Shehui Cao
Department of Grassland Science, College of Animal Science and Technology of Northwest A&F University, P.R.China, 712100
国内会议
第二届中国肉牛选育改良与产业发展国际研讨会暨中国畜牧兽医学会养牛分会八届二次学术研讨会
陕西杨凌
英文
211-217
2013-10-22（万方平台首次上网日期，不代表论文的发表时间）