A retrotransposon insertion in the Mao1 promoter results in erect pubescence and higher yield in soybean.

ABSTRACT: Adaptive changes in crops contribute to the diversity of agronomic traits, which directly or indirectly affect yield. The change of pubescence form from appressed to erect is a notable feature during soybean domestication. However, the biological significance and regulatory mechanism underlying this transformation remain largely unknown. Here, we identified a major-effect locus, PUBESCENCE FORM 1 (PF1), the upstream region of Mao1, that regulates pubescence form in soybean. The insertion of a Ty3/Gypsy retrotransposon in PF1 can recruit the transcription factor GAGA-binding protein to a GA-rich region, which up-regulates Mao1 expression, underpinning soybean pubescence evolution. Interestingly, the proportion of improved cultivars with erect pubesc

SUBMITTER: An J 

PROVIDER: S-EPMC10068782 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature