文献类型：期刊文献

英文题名：Association of microsatellite markers with growth and wood mechanical traits in Eucalyptus cloeziana F. Muell. (Myrtaceae)

作者：Zhou, Changpin[1,2] Wang, Li[1,2] Weng, Qijie[2] Li, Fagen[1,2] Li, Mei[2] Chen, Jianbo[3,4] Chen, Shengkan[3,4] Lv, Jiabin[1,2] Li, Dandan[1,2] Li, Changrong[3,4] Gan, Siming[1,2,3,4]

第一作者：周长品

通信作者：Gan, SM[1];Li, CR[2];Li, CR[3]

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]Forestry Minist China, Guangxi Key Lab Super Timber Trees Resource Culti, Guangxi Forestry Res Inst, 23 Yongwu Rd, Nanning 530002, Peoples R China;[4]Forestry Minist China, Key Lab Cent South Fast Growing Timber Cultivat, Guangxi Forestry Res Inst, 23 Yongwu Rd, Nanning 530002, Peoples R China

年份：2020

卷号：154

外文期刊名：INDUSTRIAL CROPS AND PRODUCTS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000554526900078)】；

基金：This work was financially supported by the Ministry of Science and Technology of China (2016YFD0600101), the Department of Science and Technology of Guangxi Zhuang Autonomous Region, China (Guike AA17204087-3), and the Department of Human Resources and Social Security of Guangxi Zhuang Autonomous Region, China (GuiCaiSheHan [2018]112). The authors would like to thank Jiancheng Chen, Guicheng Yu, Yuankang Huang, Yuqing Zhao, Jianfan Li, Xi Sun, Wei Zhou, Dongqiang Guo, Ziyu Deng, Cuixiang Lu, Yuan Liu, Shiqi Ren, Qinglan Tang, Zhaoyuan Zhang, and Qi Wu for valuable cooperation in plant material establishment, trial maintenance, and trait measurement. We also thank Yaqin Wang for technical assistance in microsatellite marker experiments.

语种：英文

外文关键词：Eucalyptus cloeziana F. Muell; Association mapping; Growth; Wood mechanical property; Microsatellite marker

摘要：Growth and wood mechanical properties are important traits for solid wood improvement in industrial tree breeding programs. In this study, efforts were made to identify microsatellite markers associated with growth and wood mechanical traits in an industrial tree species Eucalyptus cloeziana F. Muell. (family Myrtaceae). Based on a total of 839 microsatellite markers, 84 were screened out for association mapping in 9.5-year-old height (H-9.5), diameter over bark at breast height (D-9.5), basic density (BD9.5), green density (GD(9.5)), modulus of elasticity (MOE9.5), modulus of rupture (MOR9.5), and compressive strength parallel to the grain (sigma((c,0))(9.5)). By applying the mixed linear model and the false discovery rate correction, a collective total of 13 loci were validated for significant association with traits (Q <= 0.05), including two loci in H-9.5, three in D-9.5, seven in BD9 5, and three in MOE9.5. However, no marker-trait association was found for the rest three traits GD(9.5), MOR9.5, and sigma((c,0))(9.5). The ratio of phenotypic variance explained (R-2) by a significant locus ranged from 5.3 % to 43.1 %, with an average of 20.6 %. Favorable and/or unfavorable alleles were determined from the significant markers for each trait. Ten of the 13 significant loci were functionally homologous to known genes or predicted proteins. The novel set of significant loci identified here, along with their favorable alleles, can be used for tracking causative loci or genes and for marker-assisted breeding of the related traits.