https://scholars.lib.ntu.edu.tw/handle/123456789/573343
標題: | Ecological factors influence balancing selection on leaf chemical profiles of a wildflower | 作者: | Carley L.N CHENG-RUEI LEE et al. |
公開日期: | 2021 | 來源出版物: | Nature Ecology and Evolution | 摘要: | Balancing selection is frequently invoked as a mechanism that maintains variation within and across populations. However, there are few examples of balancing selection operating on loci underpinning complex traits, which frequently display high levels of variation. We investigated mechanisms that may maintain variation in a focal polymorphism—leaf chemical profiles of a perennial wildflower (Boechera stricta, Brassicaceae)—explicitly interrogating multiple ecological and genetic processes including spatial variation in selection, antagonistic pleiotropy and frequency-dependent selection. A suite of common garden and greenhouse experiments showed that the alleles underlying variation in chemical profile have contrasting fitness effects across environments, implicating two ecological drivers of selection on chemical profile: herbivory and drought. Phenotype–environment associations and molecular genetic analyses revealed additional evidence of past selection by these drivers. Together, these data are consistent with balancing selection on chemical profile, probably caused by pleiotropic effects of secondary chemical biosynthesis genes on herbivore defence and drought response. ? 2021, The Author(s), under exclusive licence to Springer Nature Limited. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85108058490&doi=10.1038%2fs41559-021-01486-0&partnerID=40&md5=edaf15b38d46e4c363dfeb29f993a8e9 https://scholars.lib.ntu.edu.tw/handle/123456789/573343 |
ISSN: | 2397334X | DOI: | 10.1038/s41559-021-01486-0 |
顯示於: | 生態學與演化生物學研究所 |
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