Article
From heterosis to outbreeding depression: genotype-by-environment interaction shifts hybrid fitness in opposite directions.
Genetics - 7 Aug 2024
Wang Haolong, Su Baofeng, Zhang Ying, Shang Mei, Li Shangjia, Xing De, Wang Jinhai, Bern Logan, Johnson Andrew, Al-Armanazi Jacob, Hasin Tasnuba, Hettiarachchi Darshika, Paladines Parrales Abel, Dilawar Hamza, Bruce Timothy J, Dunham Rex A, Wang Xu
Abstract excerpt
In F1 hybrids, phenotypic values are expected to be near the parental means under additive effects or close to one parent under dominance. However, F1 traits can fall outside the parental range, and outbreeding depression occurs when inferior fitness is observed in hybrids. Another possible outcome is heterosis, a phenomenon that interspecific hybrids or intraspecific crossbred F1s exhibit improved fitness...
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