--- _id: '3122' abstract: - lang: eng text: 'Since Darwin''s pioneering research on plant reproductive biology (e.g. Darwin 1877), understanding the mechanisms maintaining the diverse sexual strategies of plants has remained an important challenge for evolutionary biologists. In some species, populations are sexually polymorphic and contain two or more mating morphs (sex phenotypes). Differences in morphology or phenology among the morphs influence patterns of non-random mating. In these populations, negative frequency-dependent selection arising from disassortative (intermorph) mating is usually required for the evolutionary maintenance of sexual polymorphism, but few studies have demonstrated the required patterns of non-random mating. In the current issue of Molecular Ecology, Shang (2012) make an important contribution to our understanding of how disassortative mating influences sex phenotype ratios in Acer pictum subsp. mono (painted maple), a heterodichogamous, deciduous tree of eastern China. They monitored sex expression in 97 adults and used paternity analysis of open-pollinated seed to examine disassortative mating among three sex phenotypes. Using a deterministic ''pollen transfer'' model, Shang et al. present convincing evidence that differences in the degree of disassortative mating in progeny arrays of the sex phenotypes can explain their uneven frequencies in the adult population. This study provides a useful example of how the deployment of genetic markers, demographic monitoring and modelling can be integrated to investigate the maintenance of sexual diversity in plants. ' author: - first_name: David full_name: Field, David id: 419049E2-F248-11E8-B48F-1D18A9856A87 last_name: Field orcid: 0000-0002-4014-8478 - first_name: Spencer full_name: Barrett, Spencer last_name: Barrett citation: ama: Field D, Barrett S. Disassortative mating and the maintenance of sexual polymorphism in painted maple. Molecular Ecology. 2012;21(15):3640-3643. doi:10.1111/j.1365-294X.2012.05643.x apa: Field, D., & Barrett, S. (2012). Disassortative mating and the maintenance of sexual polymorphism in painted maple. Molecular Ecology. Wiley-Blackwell. https://doi.org/10.1111/j.1365-294X.2012.05643.x chicago: Field, David, and Spencer Barrett. “Disassortative Mating and the Maintenance of Sexual Polymorphism in Painted Maple.” Molecular Ecology. Wiley-Blackwell, 2012. https://doi.org/10.1111/j.1365-294X.2012.05643.x. ieee: D. Field and S. Barrett, “Disassortative mating and the maintenance of sexual polymorphism in painted maple,” Molecular Ecology, vol. 21, no. 15. Wiley-Blackwell, pp. 3640–3643, 2012. ista: Field D, Barrett S. 2012. Disassortative mating and the maintenance of sexual polymorphism in painted maple. Molecular Ecology. 21(15), 3640–3643. mla: Field, David, and Spencer Barrett. “Disassortative Mating and the Maintenance of Sexual Polymorphism in Painted Maple.” Molecular Ecology, vol. 21, no. 15, Wiley-Blackwell, 2012, pp. 3640–43, doi:10.1111/j.1365-294X.2012.05643.x. short: D. Field, S. Barrett, Molecular Ecology 21 (2012) 3640–3643. date_created: 2018-12-11T12:01:31Z date_published: 2012-08-01T00:00:00Z date_updated: 2021-01-12T07:41:13Z day: '01' department: - _id: NiBa doi: 10.1111/j.1365-294X.2012.05643.x intvolume: ' 21' issue: '15' language: - iso: eng month: '08' oa_version: None page: 3640 - 3643 publication: Molecular Ecology publication_status: published publisher: Wiley-Blackwell publist_id: '3577' quality_controlled: '1' scopus_import: 1 status: public title: Disassortative mating and the maintenance of sexual polymorphism in painted maple type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 21 year: '2012' ...