Inversions of chromosome arms 4AL and 2BS in wheat invert the patterns of chiasma distribution

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F12%3A00380696" target="_blank" >RIV/61389030:_____/12:00380696 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1007/s00412-011-0354-5" target="_blank" >http://dx.doi.org/10.1007/s00412-011-0354-5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00412-011-0354-5" target="_blank" >10.1007/s00412-011-0354-5</a>

Result language

angličtina

Original language name

Inversions of chromosome arms 4AL and 2BS in wheat invert the patterns of chiasma distribution

Original language description

In many species, including wheat, crossing over is distal, and the proximal regions of chromosome arms contribute little to genetic maps. This was thought to be a consequence of terminal initiation of synapsis favoring distal crossing over. However, in an inverted rye chromosome arm, the pattern of metaphase I chiasmata was also inverted, suggesting that crossover frequencies were specific to chromosome segments. Here, wheat chromosome arms 2BS and 4AL, with essentially entire arms inverted in reverse tandem duplications (rtd), were studied in the MI of meiosis. Inversion-duplication placed the recombining segments in the middle of the arms. While the overall pairing frequencies of the inverted-duplicated arms were considerably reduced relative to normal arms, chiasmata, if present, were always located in the same regions as in structurally normal arms, and relative chiasma frequencies remained the same. The frequencies of fragment or fragment + bridge configurations in AI and AII indi

Czech name

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Czech description

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Type

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

CEP classification

EB - Genetics and molecular biology

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2012

Confidentiality

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

Name of the periodical

Chromosoma

ISSN

0009-5915

e-ISSN

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Volume of the periodical

121

Issue of the periodical within the volume

2

Country of publishing house

DE - GERMANY

Number of pages

8

Pages from-to

201-208

UT code for WoS article

000302054300008

EID of the result in the Scopus database

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