Unusual karyotype diversity in the European spiders of the genus Atypus (Araneae: Atypidae)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F06%3A00018466" target="_blank" >RIV/00216224:14310/06:00018466 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/06:9917

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Unusual karyotype diversity in the European spiders of the genus Atypus (Araneae: Atypidae)

Original language description

Compared with araneomorph spiders, karyotypes of the spider infraorder Mygalomorphae are nearly unknown. In this study we investigated karyotypes of European species of the genus Atypus (Atypidae). The male karyotype of A. muralis and A. piceus comprises41 chromosomes, whereas female complements contain 42 chromosomes. On the other hand, both sexes of A. affinis possess 14 chromosomes only. It is the lowest diploid number found in mygalomorph spiders so far. Furthermore, obtained data suggest X0 sex chromosome system in A. piceus, A. muralis and neo-XY system in A. affinis. Karyotypes of all three Atypus species are composed of biarmed chromosomes only. Thus they differ significantly from the karyotype of A. karschi , the only other species of this genus studied so far. Its karyotype was reported to be composed of acrocentric chromosomes and possesses X1X20 sex chromosome system. All this shows that unlike in most genera of araneomorph spiders, mygalomorphs of the genus Atypus exhibit

Czech name

Neobyčejná diversita karyotypů evropských zástupců rodu Atypus (Araneae: Atypidae)

Czech description

Ve srovnání s ostatními araneomorfními pavouky, je karyotyp infrařádu Mygalomorpha neznámý...

Type

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

CEP classification

EG - Zoology

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

Confidentiality

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

Name of the periodical

Hereditas

ISSN

1601-5223

e-ISSN

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Volume of the periodical

143

Issue of the periodical within the volume

1

Country of publishing house

SE - SWEDEN

Number of pages

7

Pages from-to

123

UT code for WoS article

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EID of the result in the Scopus database

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