Hybridization in the absence of an ecotone favors hybrid success in woodrats (Neotoma spp.).
Neotoma
ancestry
apparent survival
genotyping-by-sequencing
hybridization
mark and release
Journal
Evolution; international journal of organic evolution
ISSN: 1558-5646
Titre abrégé: Evolution
Pays: United States
ID NLM: 0373224
Informations de publication
Date de publication:
01 04 2023
01 04 2023
Historique:
received:
22
08
2022
revised:
09
01
2023
accepted:
24
01
2023
medline:
4
4
2023
pubmed:
31
1
2023
entrez:
30
1
2023
Statut:
ppublish
Résumé
Hybridization is a common process that has broadly impacted the evolution of multicellular eukaryotes; however, how ecological factors influence this process remains poorly understood. Here, we report the findings of a 3-year recapture study of the Bryant's woodrat (Neotoma bryanti) and desert woodrat (Neotoma lepida), two species that hybridize within a creosote bush (Larrea tridentata) shrubland in Whitewater, CA, USA. We used a genotype-by-sequencing approach to characterize the ancestry distribution of individuals across this hybrid zone coupled with Cormack-Jolly-Seber modeling to describe demography. We identified a high frequency of hybridization at this site with ~40% of individuals possessing admixed ancestry, which is the result of multigenerational backcrossing and advanced hybrid-hybrid crossing. F1, F2, and advanced generation hybrids had apparent survival rates similar to parental N. bryanti, while parental and backcross N. lepida had lower apparent survival rates and were far less abundant. Compared to bimodal hybrid zones where hybrids are often rare and selected against, we find that hybrids at Whitewater are common and have comparable survival to the dominant parental species, N. bryanti. The frequency of hybridization at Whitewater is therefore likely limited by the abundance of the less common parental species, N. lepida, rather than selection against hybrids.
Identifiants
pubmed: 36715204
pii: 7008940
doi: 10.1093/evolut/qpad012
pmc: PMC10066834
mid: NIHMS1881557
doi:
Types de publication
Journal Article
Research Support, U.S. Gov't, Non-P.H.S.
Research Support, Non-U.S. Gov't
Research Support, N.I.H., Extramural
Langues
eng
Sous-ensembles de citation
IM
Pagination
959-970Subventions
Organisme : NIGMS NIH HHS
ID : T32 GM141848
Pays : United States
Organisme : NIH HHS
ID : T32GM141848
Pays : United States
Informations de copyright
© The Author(s) 2023. Published by Oxford University Press on behalf of The Society for the Study of Evolution (SSE).
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