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

Kód výsledku v 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>

Nalezeny alternativní kódy

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

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10613 - Zoology

Projekt

<a href="/cs/project/GA20-23794S" target="_blank" >GA20-23794S: Chromozom specifický pro germinální linii pěvců: porozumění jeho vzniku, funkci a roli v evoluci</a><br>

Návaznosti

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

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Journal of Avian Biology

ISSN

0908-8857

e-ISSN

1600-048X

Svazek periodika

2023

Číslo periodika v rámci svazku

3-4

Stát vydavatele periodika

DK - Dánské království

Počet stran výsledku

12

Strana od-do

e03061

Kód UT WoS článku

000905380700001

EID výsledku v databázi Scopus

2-s2.0-85144929532