Unraveling the mesopolyploid history of Australian crucifers
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F09%3A00028762" target="_blank" >RIV/00216224:14310/09:00028762 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Unraveling the mesopolyploid history of Australian crucifers
Original language description
The lowest chromosome numbers known in Brassicaceae (n=4-6) can be found in endemic Australian cruciferous species closely related to the model species Arabidopsis thaliana. We aimed to reconstruct the modes of chromosome number reduction in the Australian taxa from a tentative Ancestral Crucifer Karyotype (ACK, n=8) by comparative chromosome painting (CCP). In three Australian cruciferous species, Stenopetalum nutans (2n=8), Arabidella eremigena (2n=10) and Ballantinia antipoda (2n=12), all 24 genomicblocks of the ACK were unexpectedly found in duplicates. These data suggest that all three species experienced a relatively recent whole-genome duplication followed by massive karyotype reshuffling and chromosome fusions. The unique associations of ancestral genomic blocks shared by the ACK and the Australian crucifers suggest that the reduced crucifer karyotypes (n=4-6) descended from the ACK (n=8) via a polyploid ancestor with yet unknown chromosome number.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
EB - Genetics and molecular biology
OECD FORD branch
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Result continuities
Project
<a href="/en/project/IAA601630902" target="_blank" >IAA601630902: Chromosome evolution in crucifers (Brassicaceae) revealed by comparative chromosome painting</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů