Genomic analyses provide insights into the polyploidization-driven herbicide adaptation in Leptochloa weeds.

ABSTRACT: Polyploidy confers a selective advantage under stress conditions; however, whether polyploidization mediates enhanced herbicide adaptation remains largely unknown. Tetraploid Leptochloa chinensis is a notorious weed in the rice ecosystem, causing severe yield loss in rice. In China, L. chinensis has only one sister species, the diploid L. panicea, whose damage is rarely reported. To gain insights into the effects of polyploidization on herbicide adaptation, we first assembled a high-quality genome of L. panicea and identified genome structure variations with L. chinensis. Moreover, we identified herbicide-resistance genes specifically expanded in L. chinensis, which may confer a greater herbicide adaptability in L. chinensis. Analysis of gene retention and loss showed that five herbicide t

SUBMITTER: Chen K 

PROVIDER: S-EPMC10363762 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature