التفاصيل البيبلوغرافية
| العنوان: |
A shared genetic basis of mimicry across swallowtail butterflies points to ancestral co-option of doublesex. |
| المؤلفون: |
Palmer, Daniela H., Kronforst, Marcus R. |
| المصدر: |
Nature Communications; 1/3/2020, Vol. 11 Issue 1, p1-10, 10p |
| مصطلحات موضوعية: |
MIMICRY (Biology), PAPILIONIDAE, DOUBLESEX gene, TAXONOMY, PHENOTYPES |
| مستخلص: |
Uncovering whether convergent adaptations share a genetic basis is consequential for understanding the evolution of phenotypic diversity. This information can help us understand the extent to which shared ancestry or independent evolution shape adaptive phenotypes. In this study, we first ask whether the same genes underlie polymorphic mimicry in Papilio swallowtail butterflies. By comparing signatures of genetic variation between polymorphic and monomorphic species, we then investigate how ancestral variation, hybridization, and independent evolution contributed to wing pattern diversity in this group. We report that a single gene, doublesex (dsx), controls mimicry across multiple taxa, but with species-specific patterns of genetic differentiation and linkage disequilibrium. In contrast to widespread examples of phenotypic evolution driven by introgression, our analyses reveal distinct mimicry alleles. We conclude that mimicry evolution in this group was likely facilitated by ancestral polymorphism resulting from early co-option of dsx as a mimicry locus, and that evolutionary turnover of dsx alleles may underlie the wing pattern diversity of extant polymorphic and monomorphic lineages. Polymorphic mimicry in Papilio swallowtail butterflies is thought to have had multiple independent origins. Here, the authors show that the gene doublesex controls mimicry across multiple species, but with distinct alleles that may have originated from an ancestral polymorphism. [ABSTRACT FROM AUTHOR] |
|
Copyright of Nature Communications is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
Full Text Finder