Karyotypova diferenciace u halančíků rodu Chrompahyosemion (Cyprinodontiformes, Nothobranchiidae): procesy, mechanismy a evoluční souvislosti

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985904%3A_____%2F08%3A00307740" target="_blank" >RIV/67985904:_____/08:00307740 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Karyotype differentiation in Chromaphyosemion killifishes (Cyprinodontiformes, Nothobranchiidae): patterns, mechanisms and evolutionary implications

Popis výsledku v původním jazyce

Chromaphyosemion killifishes are a karyotypically highly diverse group of small,sexually dimorphic fishes living in rainforest rivulets in tropical West and Central Africa.In the present study,we used various chromosome banding and staining techniques toanalyse the karyotypes of 13 populations representing seven described speciesand two undescribed forms.Diploid chromosome numbers(2n) and the number of chromosome arms(NF) ranged from 2n = 24 to 2n = 40 in and from NF = 40 - 54.A tentative XX/XY sex chromosome system was revealed in sevral species.Mapping cytogenetic data for all described Chromaphyosemion species onto a recently published mitochondrial DNA phylogeny revealed a complex pattern of chromosomal evolution.Together with the results of preliminary crossing and matechoice experiments,the cytogenetic and molecular phylogenetic data suggest that chromosomal rearrangements are probably not the most important and certainly not the only factor driving speciation.

Název v anglickém jazyce

Karyotype differentiation in Chromaphyosemion killifishes (Cyprinodontiformes, Nothobranchiidae): patterns, mechanisms and evolutionary implications

Popis výsledku anglicky

Chromaphyosemion killifishes are a karyotypically highly diverse group of small,sexually dimorphic fishes living in rainforest rivulets in tropical West and Central Africa.In the present study,we used various chromosome banding and staining techniques toanalyse the karyotypes of 13 populations representing seven described speciesand two undescribed forms.Diploid chromosome numbers(2n) and the number of chromosome arms(NF) ranged from 2n = 24 to 2n = 40 in and from NF = 40 - 54.A tentative XX/XY sex chromosome system was revealed in sevral species.Mapping cytogenetic data for all described Chromaphyosemion species onto a recently published mitochondrial DNA phylogeny revealed a complex pattern of chromosomal evolution.Together with the results of preliminary crossing and matechoice experiments,the cytogenetic and molecular phylogenetic data suggest that chromosomal rearrangements are probably not the most important and certainly not the only factor driving speciation.

Druh

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

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

<a href="/cs/project/LC06073" target="_blank" >LC06073: Centrum pro výzkum biodiverzity</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

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

Název periodika

Biological Journal of the Linnean Society

ISSN

0024-4066

e-ISSN

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Svazek periodika

94

Číslo periodika v rámci svazku

-

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

143-153

Kód UT WoS článku

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EID výsledku v databázi Scopus

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