Genetic basis of species-specific genitalia reveals role in species diversification
| Autor: | Yasuoki Takami, Tomochika Fujisawa, Masataka Sasabe, Nobuaki Nagata, Teiji Sota |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Male Carabus Quantitative Trait Loci Morphology (biology) Quantitative trait locus Parapatric speciation 010603 evolutionary biology 01 natural sciences Divergence Internal fertilization 03 medical and health sciences Species Specificity Animals Sex organ Genitalia Coevolution Research Articles 030304 developmental biology 0303 health sciences Evolutionary Biology Multidisciplinary biology fungi food and beverages SciAdv r-articles Biodiversity biology.organism_classification Biological Evolution Coleoptera Evolutionary biology Female human activities Research Article |
| Zdroj: | Science Advances |
| ISSN: | 2375-2548 |
| Popis: | The diversity of genital morphology among closely related animals with internal fertilization is well known, but the genetic backgrounds are unclear. Here, we show that, in Carabus (Ohomopterus) beetles showing correlated evolution of male and female genital parts, only a few major quantitative trait loci (QTLs) determine differences in genital dimensions between sister species, and sequence divergence is pronounced in the genomic regions containing genital QTLs. The major QTLs for male and female genital dimensions reside in different locations within the same linkage group, implying that coevolution between the sexes is only loosely constrained and can respond to sexually antagonistic selection. The same genomic regions containing the major QTLs show elevated divergence between three pairs of parapatric species with marked differences in genital parts. Our study demonstrates that species diversification can follow coevolution of genitalia between the sexes, even without tight linkage of loci affecting male and female genital dimensions. 交尾器の進化で種が多様化することを示唆 --ゲノム研究で分かった隠れた種分化の仕組み--. 京都大学プレスリリース. 2019-07-03. |
| Databáze: | OpenAIRE |
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