Liu, N.; Ding, C.; Li, B.; Ding, M.; Su, X.; Huang, Q. Analysis of the Genotype Interaction of Four-Year-Old Populus euramericana Using the BLUP-GGE Technique. Forests2021, 12, 1759.
Liu, N.; Ding, C.; Li, B.; Ding, M.; Su, X.; Huang, Q. Analysis of the Genotype Interaction of Four-Year-Old Populus euramericana Using the BLUP-GGE Technique. Forests 2021, 12, 1759.
Liu, N.; Ding, C.; Li, B.; Ding, M.; Su, X.; Huang, Q. Analysis of the Genotype Interaction of Four-Year-Old Populus euramericana Using the BLUP-GGE Technique. Forests2021, 12, 1759.
Liu, N.; Ding, C.; Li, B.; Ding, M.; Su, X.; Huang, Q. Analysis of the Genotype Interaction of Four-Year-Old Populus euramericana Using the BLUP-GGE Technique. Forests 2021, 12, 1759.
Abstract
Poplar is a globalized commercial tree species that supports humanity's economy, energy, and ecology. To evaluate the twelve hybrid Populus euramericana genotypes developed in China, a total of six locations were selected for the test, comprising four climatic types and three soil kinds. The objective of this study is to characterize the early stages of Populus euramericana growth and test locations; to identify good genotypes for stable and high yield that may be encouraged; and to offer practical experience and technical assistance for further breeding of Populus euramericana. Main research methods include the statistical description of tree heights and diameter at breast heights[DBH], the establishment of a mixed effect model to analyze the genotype and environmental interaction effect [G×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×E 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; broad-sense heritability of tree height and DBH is 0.13 and 0.3, type-B correlation is 0.36 and 0.65; G5, G7, G4 and G9 are excellent genotypes with high yield and stability; using these four genotypes tree height and DBH can get 3.35% and 0.81% genetic gains.The study concludes as follows: Rank-change interaction and scale-effect interaction were distinctly occurred. The G, E, and G×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. N146 is a great source of paternal genetics.
Keywords
Genotype and environment interaction; Muti-environment test; Genotype selection; BLUP-GGE; Populus euramericana
Subject
Biology and Life Sciences, Forestry
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
