A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Inter and intraspecific genomic divergence in Drosophila montana shows evidence for cold adaptation (2018)

Parker, D., Wiberg, R. A. W., Trivedi, U., Tyukmaeva, V., Gharbi, K., Butlin, R. K., Hoikkala, A., Kankare, M., & Ritchie, M. G. (2018). Inter and intraspecific genomic divergence in Drosophila montana shows evidence for cold adaptation. Genome Biology and Evolution, 10(8), 2086-2101. https://doi.org/10.1093/gbe/evy147

JYU-tekijät tai -toimittajat

Parker, Darren
Kankare, Maaria
Tyukmaeva, Venera
Hoikkala, Anneli

Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Parker, Darren; Wiberg, R. Axel W.; Trivedi, Urmi; Tyukmaeva, Venera; Gharbi, Karim; Butlin, Roger K.; Hoikkala, Anneli; Kankare, Maaria; Ritchie, Michael G.

Lehti tai sarja: Genome Biology and Evolution

ISSN: 1759-6653

eISSN: 1759-6653

Julkaisuvuosi: 2018

Volyymi: 10

Lehden numero: 8

Artikkelin sivunumerot: 2086-2101

Kustantaja: Oxford University Press

Julkaisumaa: Britannia

Julkaisun kieli: englanti

DOI: https://doi.org/10.1093/gbe/evy147

Linkki tutkimusaineistoon: https://doi.org/10.5061/dryad.s813p55

Julkaisun avoin saatavuus: Avoimesti saatavilla

Julkaisukanavan avoin saatavuus: Kokonaan avoin julkaisukanava

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/59357

Tiivistelmä

The genomes of species that are ecological specialists will likely contain signatures of genomic adaptation to their niche. However, distinguishing genes related to ecological specialism from other sources of selection and more random changes is a challenge. Here, we describe the genome of Drosophila montana, which is the most extremely cold-adapted Drosophila species known. We use branch tests to identify genes showing accelerated divergence in contrasts between cold- and warm-adapted species and identify about 250 genes that show differences, possibly driven by a lower synonymous substitution rate in cold-adapted species. We also look for evidence of accelerated divergence between D. montana and D. virilis, a previously sequenced relative, but do not find strong evidence for divergent selection on coding sequence variation. Divergent genes are involved in a variety of functions, including cuticular and olfactory processes. Finally, we also resequenced three populations of D. montana from across its ecological and geographic range. Outlier loci were more likely to be found on the X chromosome and there was a greater than expected overlap between population outliers and those genes implicated in cold adaptation between Drosophila species, implying some continuity of selective process at these different evolutionary scales.

YSO-asiasanat: sopeutuminen; kylmänkestävyys; genomiikka; mahlakärpäset

Vapaat asiasanat: cold tolerance; Drosophila montana; ecological adaptation; comparative genomics

Liittyvät organisaatiot

Hankkeet, joissa julkaisu on tehty

OKM-raportointi: Kyllä

Raportointivuosi: 2018

JUFO-taso: 1