期刊论文

Genetic Similarity of Hunan Rice Landraces with the Same or Similar Name Based on SSR Markers and Phenotypic Traits

中文

植物遗传资源学报

Journal of Plant Genetic Resources

1672-1810

2014

15

2

248-254

10.13430/j.cnki.jpgr.2014.02.004

国家现代农业产业技术体系建设专项(nycytx-001)； 公益性行业(农业)科研专项经费项目(201003021)；

本校为第一机构

本研究以湖南种质库中保存的不同来源的同名湖南地方稻种质11组(同近名为1组)共136份为研究材料,进行 SSR分子标记及农艺性状比较分析,目的是评价湖南同(近)名地方稻的遗传差异程度,为同(近)名地方稻种质资源的保存、供种以及重点利用种质遴选提供理论依据。研究结果表明,各组同名材料的表型遗传距离数值变化较大,各组最大遗传距离变幅1. 25(D6 /D13)~ 1. 51(G1 /G5),最小遗传距离变幅0. 16(E7 /E9)~ 0. 81(B2 /B11)。各组同名材料的SSR 标记相似系数差异也大,最小相似系数变幅0. 38 ~ 0. 71,最大相似系数变幅0. 86 ~ 1. 00; 同组内同(近)名材料交叉聚类。基于表型性状遗传距离与基于SSR 标记遗...

136 rice （Oryza sativa L.） landraces accessions were selected from the Hunan gene bank and divided into eleven groups, accessions within each group sharing the same or similar name. Genetic similarities among these accessions were evaluated through phenotypic investigation and SSR marker analysis. The phenotypic traits differ among accessions with the same or similar name, the maximum genetic distance among groups ranged from 1.25 to 1.52, while the minimum genetic distance ranged from 0.16 to 0.81. Cluster analysis based on SSR markers indic...