SYNTHESIS OF CLONALITY AND POLYPLOIDY IN VERTEBRATE ANIMALS BY HYBRIDIZATION BETWEEN TWO SEXUAL SPECIES

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985904%3A_____%2F12%3A00379682" target="_blank" >RIV/67985904:_____/12:00379682 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1111/j.1558-5646.2012.01589.x" target="_blank" >http://dx.doi.org/10.1111/j.1558-5646.2012.01589.x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/j.1558-5646.2012.01589.x" target="_blank" >10.1111/j.1558-5646.2012.01589.x</a>

Jazyk výsledku

angličtina

Název v původním jazyce

SYNTHESIS OF CLONALITY AND POLYPLOIDY IN VERTEBRATE ANIMALS BY HYBRIDIZATION BETWEEN TWO SEXUAL SPECIES

Popis výsledku v původním jazyce

Because most clonal vertebrates have hybrid genomic constitutions, tight linkages are assumed among hybridization, clonality, and polyploidy. However, predictions about how these processes mechanistically relate during the switch from sexual to clonal reproduction have not been validated. Therefore, we performed a crossing experiment to test the hypothesis that interspecific hybridization per se initiated clonal diploid and triploid spined loaches (Cobitis) and their gynogenetic reproduction. We rearedtwo F1 families resulting from the crossing of 14 pairs of two sexual species, and found their diploid hybrid constitution and a 1:1 sex ratio. While males were infertile, females produced unreduced nonrecombinant eggs (100%). Synthetic triploid femalesand males (96.3%) resulted in each of nine backcrossed families from eggs of synthesized diploid F1s fertilized by haploid sperm from sexual males. Five individuals (3.7%) from one backcross family were genetically identical to the somati

Název v anglickém jazyce

SYNTHESIS OF CLONALITY AND POLYPLOIDY IN VERTEBRATE ANIMALS BY HYBRIDIZATION BETWEEN TWO SEXUAL SPECIES

Popis výsledku anglicky

Because most clonal vertebrates have hybrid genomic constitutions, tight linkages are assumed among hybridization, clonality, and polyploidy. However, predictions about how these processes mechanistically relate during the switch from sexual to clonal reproduction have not been validated. Therefore, we performed a crossing experiment to test the hypothesis that interspecific hybridization per se initiated clonal diploid and triploid spined loaches (Cobitis) and their gynogenetic reproduction. We rearedtwo F1 families resulting from the crossing of 14 pairs of two sexual species, and found their diploid hybrid constitution and a 1:1 sex ratio. While males were infertile, females produced unreduced nonrecombinant eggs (100%). Synthetic triploid femalesand males (96.3%) resulted in each of nine backcrossed families from eggs of synthesized diploid F1s fertilized by haploid sperm from sexual males. Five individuals (3.7%) from one backcross family were genetically identical to the somati

Druh

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

CEP obor

EG - Zoologie

OECD FORD obor

—

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Evolution

ISSN

0014-3820

e-ISSN

—

Svazek periodika

66

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

2191-2203

Kód UT WoS článku

000305945400016

EID výsledku v databázi Scopus

—