Assessment of genetic diversity among androdioeciousancient Osmanthus fragrans trees using SSR markers
Osmanthus fragrans, a well known ornamental plant, is also one of the rareandrodioecious species.Determining the genetic diversity of this species would assist in its conservation and genetic improvement.Data of 10 ancient O.fragrans tree populations were used to assess its genetic diversity and population structure with microsatellite markers.A high level of genetic diversity was observed with POPGENE.The observed and expected heterozygosityof ancient hermaphrodite trees were higher than males, although the number of hermaphrodites was far less than males.Abundant gene exchange between males and hermaphrodites was detected, and trees from the same population often clustered together.Androdioecy is an important factor that determines the genetic structure of O.fragrans and it”s urgent to conserve ancient O.fragrans germplasms especially the hermaphrodites.
androdioecy genetic diversity Osmanthus fragrans microsatellite markers relationship
DUAN Yifan LI Meng YI Xiangui WANG Huachen WANGXianrong XIANG Qibai
International Cultivar Registration Center for Osmanthus, Department of Bonaty, College of Biology a The ECORES Lab, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu,610041, P.R.China
国内会议
中国林学会树木学分会第十七届学术年会暨海峡两岸树木学教学研讨会
南京
英文
33-41
2015-08-01（万方平台首次上网日期，不代表论文的发表时间）