文献类型：期刊文献

英文题名：Analysis of the Genotype Interaction of Four-Year-Old Populus euramericana Using the BLUP-GGE Technique

作者：Liu, Ning[1,2] Ding, Changjun[1,2] Li, Bo[1,2] Ding, Mi[1,2] Su, Xiaohua[1,2] Huang, Qinjun[1,2]

第一作者：Liu, Ning

通信作者：Huang, QJ[1];Huang, QJ[2]

机构：[1]Chinese Acad Forestry, Res Inst Forestry, State Key Lab Tree Genet & Breeding, Beijing 100091, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry, Key Lab Tree Breeding & Cultivat State Forestry A, Beijing 100091, Peoples R China

年份：2021

卷号：12

期号：12

外文期刊名：FORESTS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000737669400001)】；

基金：FundingThis study was funded by the Basic Research Fund of RIF (Grant No. CAFYBB2017ZA001-3, Grant No. CAFYBB2020SZ002) and the National Key Research and Development program of China (Grant No. 2016YFD0600400).

语种：英文

外文关键词：genotype and environment interaction; multi-environment test; genotype selection; BLUP-GGE; Populus euramericana

摘要：Poplar is a commercially globalized tree species that provides energy and economic and ecological support. To evaluate the twelve hybrid Populus euramericana genotypes developed in China, a total of six locations were selected for the current study, comprising four climatic types and three kinds of soil. The objective of this study was to characterize the early stages of Populus euramericana growth and to test the locations; to identify good genotypes for stable and high yield; and to offer practical experience and technical assistance for further breeding of Populus euramericana. The main research methods included the statistical description of tree heights and diameter at breast height (DBH), the establishment of a mixed effect model to analyze the genotype and environmental interaction effect (G x E), the use of best linear unbiased prediction (BLUP) values as GGE biplots to achieve visual screening, and the calculation of genetic parameters. Results show that the genotype effect (G), the environmental effect (E), and the G x E interaction is significant; the BLUP value has a strong correspondence with the observed value; the goodness of fit of all biplots can explain more than 85% of the variation; the broad-sense heritability of tree height and DBH is 0.13 and 0.3, respectively; and the type-B correlation is 0.36 and 0.65. In addition, G5, G7, G4, and G9 are excellent genotypes with high yield and stability; using the tree height and DBH of these four genotypes can achieve genetic gains of 3.35% and 0.81%. The conclusions of this study are as follows: the rank-change and scale-effect interactions were distinct; G, E, and G x E all had a significant effect on the growth of poplar trees during their early stage; G4, G5, G7, and G9 genotypes have favorable development characteristics; and N146 is an excellent source of paternal genetics.