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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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 =

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EB - Genetics and molecular biology

OECD FORD branch

—

Project

<a href="/en/project/GA14-02940S" target="_blank" >GA14-02940S: Ploidy and hybrid diversity in sturgeons (Acipenseriformes) and its impacts on conservation and breeding</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

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

Name of the periodical

Proceedings of the Royal Society. B - Biological Sciences

ISSN

0962-8452

e-ISSN

—

Volume of the periodical

282

Issue of the periodical within the volume

1802

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

—

UT code for WoS article

000350344900026

EID of the result in the Scopus database

2-s2.0-84921824499