Patterns of hybridization in a secondary contact zone between two passerine species, the common nightingale Luscinia megarhynchos and the thrush nightingale Luscinia luscinia

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F23%3A10467342" target="_blank" >RIV/00216208:11310/23:10467342 - isvavai.cz</a>

Alternative codes found

RIV/60076658:12310/23:43906420 RIV/61989592:15310/23:73622559

Result on the web

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=ls_fOyCO0_" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=ls_fOyCO0_</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/jav.03061" target="_blank" >10.1111/jav.03061</a>

Result language

angličtina

Original language name

Patterns of hybridization in a secondary contact zone between two passerine species, the common nightingale Luscinia megarhynchos and the thrush nightingale Luscinia luscinia

Original language description

Understanding how reproductive isolation arises and accumulates between incipient species is an important goal of evolutionary biology. Patterns of interspecific hybridization in naturally occurring hybrid zones can provide an important insight into this process since they reflect the strength, symmetry and nature of reproductive barriers separating the species. Here we studied patterns of hybridization in two closely related passerine species, the common nightingale Luscinia megarhynchos and the thrush nightingale L. luscinia, that diverged approx. 1.8 Mya and co-occur in a secondary contact zone spanning across Europe. Genome-wide genotyping of more than three hundred individuals from the sympatric population and adjacent allopatric populations revealed that the vast majority of sympatric individuals were pure parental species. Only 6.5% of sympatric individuals were hybrids, from which 3.4% were F(1) hybrids and 3.1% backcross hybrids from the first to the fifth backcross generation. Most F(1) hybrids arose from the cross of a thrush nightingale female and a common nightingale male. F(1) hybrids showed intermediate morphology and could be distinguished with high confidence from the parental species based on several diagnostic traits. However, backcrosses were morphologically difficult to distinguish from the parental species from which they inherited most of the genome. Our results suggest strong, yet incomplete, reproductive isolation between the two nightingale species both at a prezygotic and postzygotic level. Nightingales thus represent a useful model system for exploring the late stages of speciation with ongoing gene flow after secondary contact.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10613 - Zoology

Project

<a href="/en/project/GA20-23794S" target="_blank" >GA20-23794S: Germline restricted chromosome in songbirds: understanding its origin, function and evolutionary significance</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Avian Biology

ISSN

0908-8857

e-ISSN

1600-048X

Volume of the periodical

2023

Issue of the periodical within the volume

3-4

Country of publishing house

DK - DENMARK

Number of pages

12

Pages from-to

e03061

UT code for WoS article

000905380700001

EID of the result in the Scopus database

2-s2.0-85144929532