Reproductive isolation in a nascent species pair is associated with aneuploidy in hybrid offspring

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985904%3A_____%2F15%3A00441654" target="_blank" >RIV/67985904:_____/15:00441654 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1098/rspb.2014.2862" target="_blank" >http://dx.doi.org/10.1098/rspb.2014.2862</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1098/rspb.2014.2862" target="_blank" >10.1098/rspb.2014.2862</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Reproductive isolation in a nascent species pair is associated with aneuploidy in hybrid offspring

Popis výsledku v původním jazyce

Speciation may occur when the genomes of two populations accumulate genetic incompatibilities and/or chromosomal rearrangements that prevent inter-breeding in nature. Chromosome stability is critical for survival and faithful transmission of the genome,and hybridization can compromise this. However, the role of chromosomal stability on hybrid incompatibilities has rarely been tested in recently diverged populations. Here, we test for chromosomal instability in hybrids between nascent species, the dwarf? and normal? lake whitefish (Coregonus clupeaformis). We examined chromosomes in pure embryos, and healthy and malformed backcross embryos. While pure individuals displayed chromosome numbers corresponding to the expected diploid number (2n = 80), healthy backcrosses showed evidence of mitotic instability through an increased variance of chromosome numbers within an individual. In malformed backcrosses, extensive aneuploidy corresponding to multiples of the haploid number (1n = 40, 2n =

Název v anglickém jazyce

Reproductive isolation in a nascent species pair is associated with aneuploidy in hybrid offspring

Popis výsledku anglicky

Speciation may occur when the genomes of two populations accumulate genetic incompatibilities and/or chromosomal rearrangements that prevent inter-breeding in nature. Chromosome stability is critical for survival and faithful transmission of the genome,and hybridization can compromise this. However, the role of chromosomal stability on hybrid incompatibilities has rarely been tested in recently diverged populations. Here, we test for chromosomal instability in hybrids between nascent species, the dwarf? and normal? lake whitefish (Coregonus clupeaformis). We examined chromosomes in pure embryos, and healthy and malformed backcross embryos. While pure individuals displayed chromosome numbers corresponding to the expected diploid number (2n = 80), healthy backcrosses showed evidence of mitotic instability through an increased variance of chromosome numbers within an individual. In malformed backcrosses, extensive aneuploidy corresponding to multiples of the haploid number (1n = 40, 2n =

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EB - Genetika a molekulární biologie

OECD FORD obor

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Projekt

<a href="/cs/project/GA14-02940S" target="_blank" >GA14-02940S: Ploidní a hybridní diverzita jeseterů (Acipenseriformes) a její dopady na ochranu a chov</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Proceedings of the Royal Society. B - Biological Sciences

ISSN

0962-8452

e-ISSN

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Svazek periodika

282

Číslo periodika v rámci svazku

1802

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

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Kód UT WoS článku

000350344900026

EID výsledku v databázi Scopus

2-s2.0-84921824499