文献类型：期刊文献

英文题名：Genetic diversity of second generation-parental germplasm of masson pine revealed by SSR markers and establishment of a core germplasm collection

作者：Yang, Hanbo[1,2,3] Liu, Qinghua[1] Zhang, Rui[1] Zhou, Zhichun[1]

第一作者：Yang, Hanbo

通信作者：Zhou, ZC[1]

机构：[1]Chinese Acad Forestry, Engn Res Ctr Masson Pine, Res Inst Subtrop Forestry, Zhejiang Prov Key Lab Tree Breeding,State Forestr, Hangzhou 311400, Zhejiang, Peoples R China;[2]Sichuan Agr Univ, Inst Ecol & Forestry, Sichuan Prov Key Lab Ecol Forestry Engn Upper Rea, Chengdu, Peoples R China;[3]Sichuan Agr Univ, Inst Ecol & Forestry, Natl Forestry & Grassland Adm,West China Plantat, Key Lab Forest Resources Conservat & Ecol Safety, Chengdu, Peoples R China

年份：2021

卷号：36

期号：7-8

起止页码：524-531

外文期刊名：SCANDINAVIAN JOURNAL OF FOREST RESEARCH

收录：;EI(收录号：20213910956700);Scopus(收录号：2-s2.0-85115752381);WOS:【SCI-EXPANDED(收录号:WOS:000700495500001)】；

基金：This work was supported by National Key R&D Program of China [grant number 2017YFD0600301]; Central Public-Interest Scientific Institution Basal Research Fund of Chinese Academy of Forestry [grant number CAFYBB2017A001-2]; Forestry Science and Technology Innovation Project of Jiangxi Province [grant number 201703]; Tree Breeding Research Project during the 13th Five-year Period of Zhejiang Province [grant number 2016C02056-4].

语种：英文

外文关键词：Pinus massoniana Lamb; second-generation parental; SSR marker; genetic diversity; core collection

摘要：Twenty SSR markers were used to evaluate the genetic diversity of 304 s-generation parentals of masson pine (Pinus massoniana Lamb.), which was collected from eight locations in China. The average polymorphism information content value (0.892) and Shannon's information index value (2.87) indicated high genetic diversity. Analysis of molecular variance revealed that most of the genetic variations occurred within geographic locations (99.82%), resulting in high gene flow (Nm = 1.351). Germplasm of timber utilization (13.51) had a significantly more average number of effective alleles than germplasm of rosin utilization (10.30). Genetic diversity estimates for germplasm between locations and utilization were similar. Genetic structure analysis and cluster analysis showed three clusters. Genotypes revealed a high level of admixture between the gene pool within locations and utilization germplasms. A core collection of 104 individuals contained 100% alleles identified in the initial 304 accessions.