biostudies-literatureSun PJSPS KAKENHINational Natural Science Foundation of ChinaNational Key Research and Development Program of ChinaFundamental Research Funds for the Central Non-profit Research Institution of CAF606https://www.ebi.ac.uk/biostudies/studies/S-EPMC10688080biostudies-literatureUnknown23(1)<h4>Background</h4>Dioecy, a sexual system of single-sexual (gynoecious/androecious) individuals, is rare in flowering plants. This rarity may be a result of the frequent transition from dioecy into systems with co-sexual individuals.<h4>Results</h4>In this study, co-sexual expression (monoecy and hermaphroditic development), previously thought to be polyploid-specific in Diospyros species, was identified in the diploid D. oleifeara historically. We characterized potential genetic mechanisms that underlie the dissolution of dioecy to monoecy and andro(gyno)monoecy, based on multiscale genome-wide investigations of 150 accessions of Diospyros oleifera. We found all co-sexual plants, including monoecious and andro(gyno)monoecious individuals, possessed the male determinant gene OGI, implyingBMC plant biologyGenetic insights into the dissolution of dioecy in diploid persimmon Diospyros oleifera Cheng.PMC1068808020K204542019YFD100060032071801CAFYBB2017ZA0052018YFD100060621KK0269Li HMai YLi FHan WSuo YYuan JNishiyama SLiang CSun PZhang YDiao SFu JDu HTao RWang YfalseGenetic insights into the dissolution of dioecy in diploid persimmon Diospyros oleifera Cheng.<h4>Background</h4>Dioecy, a sexual system of single-sexual (gynoecious/androecious) individuals, is rare in flowering plants. This rarity may be a result of the frequent transition from dioecy into systems with co-sexual individuals.<h4>Results</h4>In this study, co-sexual expression (monoecy and hermaphroditic development), previously thought to be polyploid-specific in Diospyros species, was identified in the diploid D. oleifeara historically. We characterized potential genetic mechanisms that underlie the dissolution of dioecy to monoecy and andro(gyno)monoecy, based on multiscale genome-wide investigations of 150 accessions of Diospyros oleifera. We found all co-sexual plants, including monoecious and andro(gyno)monoecious individuals, possessed the male determinant gene OGI, implying2023-01-01T00:00:00Z2023 Nov2026-05-28T21:35:03.128Z2025-04-19T20:22:42.294ZS-EPMC106880803803096810.1186/s12870-023-04610-3