Young inversion with multiple linked QTLs under selection in a hybrid zone

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F17%3A00095159" target="_blank" >RIV/00216224:14740/17:00095159 - isvavai.cz</a>
Result on the web
<a href="https://www.nature.com/articles/s41559-017-0119" target="_blank" >https://www.nature.com/articles/s41559-017-0119</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41559-017-0119" target="_blank" >10.1038/s41559-017-0119</a>

Result language
angličtina
Original language name
Young inversion with multiple linked QTLs under selection in a hybrid zone
Original language description
Fixed chromosomal inversions can reduce gene flow and promote speciation in two ways: by suppressing recombination and by carrying locally favoured alleles at multiple loci. However, it is unknown whether favoured mutations slowly accumulate on older inversions or if young inversions spread because they capture pre-existing adaptive quantitative trait loci (QTLs). By genetic mapping, chromosome painting and genome sequencing, we have identified a major inversion controlling ecologically important traits in Boechera stricta. The inversion arose since the last glaciation and subsequently reached local high frequency in a hybrid speciation zone. Furthermore, the inversion shows signs of positive directional selection. To test whether the inversion could have captured existing, linked QTLs, we crossed standard, collinear haplotypes from the hybrid zone and found multiple linked phenology QTLs within the inversion region. These findings provide the first direct evidence that linked, locally adapted QTLs may be captured by young inversions during incipient speciation.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10602 - Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology

Project
<a href="/en/project/GAP501%2F10%2F1014" target="_blank" >GAP501/10/1014: Genome evolution in Cardamine allopolyploids of contrasting phylogenetic age</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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