文献类型：期刊文献

英文题名：Enhanced correlations of EST-SSR-based genetic distance with hybrid performance, specific hybridizing ability, and heterosis using effect-increasing and effect-decreasing alleles: a case study in Eucalyptus L'Her.

作者：Chen, Shengkan[1,2,3,4] Zhou, Changpin[1,2] He, Xudong[5] Weng, Qijie[2] Li, Fagen[1,2] Li, Mei[2] Guo, Yong[6] Gan, Siming[1,2,3,4]

第一作者：Chen, Shengkan

通信作者：Gan, SM[1];Gan, SM[2];Gan, SM[3];Gan, SM[4]

机构：[1]Chinese Acad Forestry, State Key Lab Tree Genet & Breeding, Xiangshan Rd, Beijing 100091, Peoples R China;[2]Chinese Acad Forestry, Res Inst Trop Forestry, Key Lab State Forestry Adm Trop Forestry Res, Guangzhou 510520, Peoples R China;[3]Guangxi Forestry Res Inst, Guangxi Key Lab Super Timber Trees Resource Culti, 23 Yongwu Rd, Nanning 530002, Peoples R China;[4]Guangxi Forestry Res Inst, Key Lab Cent South Fast Growing Timber Cultivat F, Minist China, 23 Yongwu Rd, Nanning 530002, Peoples R China;[5]Jiangsu Acad Forestry, 109 Danyang Rd, Nanjing 211153, Peoples R China;[6]Guangzhou Geneun Biotechnol Co Ltd, Ruifeng Ctr, Room 617, Bldg 2, Guangzhou 510530, Guangdong, Peoples R China

年份：2020

卷号：16

期号：1

外文期刊名：TREE GENETICS & GENOMES

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000511856900001)】；

基金：This work was financially supported by the Department of Science and Technology of Guangxi Zhuang Autonomous Region, China (Guike AA17204065-6), Fundamental Research Funds of Chinese Academy of Forestry (CAFYBB2017ZY003 and CAFYBB2017SY018), and the Department of Human Resources and Social Security of Guangxi Zhuang Autonomous Region, China (GuiCaiSheHan[2018]112).

语种：英文

外文关键词：Eucalyptus; EST-SSR; Specific hybridizing ability; Heterosis; Effect-increasing allele; Effect-decreasing allele

摘要：A factorial mating population between 10 Eucalyptus urophylla S. T. Blake and 10 E. tereticornis Smith parents tested at two sites was used to investigate the relationship of parental genetic variation to hybrid mean value (MV), specific hybridizing ability (SHA), and heterosis. Based on 184 polymorphic expressed sequence tag (EST) derived simple sequence repeats (SSR) markers, genetic distance (GD) between parents (GD(All)) ranged from 0.293 to 0.783, averaging at 0.700. For tree height, breast-high diameter and wood density at age of 7.5 years, GD(All), GDs based on markers beyond 0.70 and 0.80 in polymorphism information content and GDs based on alleles within 0.10-0.90, 0.20-0.80, and 0.30-0.70 in allele frequency were not significantly correlated with MV, SHA, and the majority of heterosis types. GD based on effect-significant alleles was significantly correlated only with a few of traits or for certain site, while GDs based on effect-increasing (GD(IA)) and effect-decreasing alleles (GD(DA)) had significantly positive and negative correlations, respectively, with all the MV and SHA as well as across-site mid-parent heterosis. These results suggest the potential utility of GD(IA) and GD(DA) for molecular prediction of hybrid performance, SHA, and heterosis in Eucalyptus and may have implications for hybrid breeding in other plants.