How diploidization turned a tetraploid into a pseudotriploid
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F16%3A00088729" target="_blank" >RIV/00216224:14740/16:00088729 - isvavai.cz</a>
Result on the web
<a href="http://www.amjbot.org/content/103/7/1187" target="_blank" >http://www.amjbot.org/content/103/7/1187</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3732/ajb.1500452" target="_blank" >10.3732/ajb.1500452</a>
Alternative languages
Result language
angličtina
Original language name
How diploidization turned a tetraploid into a pseudotriploid
Original language description
PREMISE OF THE STUDY: Despite being highly fertile and occupying a large geographic region, the North American heartleaf bittercress (Cardamine cordifolia; Brassicaceae) has a puzzling triploid- like chromosome number (2n = 3x = 24). As most triploids are sterile, we embarked on a detailed analysis of the C. cordifolia genome to elucidate its origin and structure. METHODS: Mitotic and meiotic chromosome complement of C. cordifolia was analyzed by comparative chromosome painting using chromosome-specific BAC contigs of Arabidopsis thaliana. Resulting chromosome patterns were documented by multicolor fluorescence microscopy and compared with known ancestral and extant Brassicaceae genomes. KEY RESULTS: We discovered that C. cordifolia is not a triploid hybrid but a diploidized tetraploid with the prevalence of regular, diploid-like meiotic pairing. The ancestral tetraploid chromosome number (2n = 32) was reduced to a triploid- like number (2n = 24) through four terminal chromosome translocations.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EB - Genetics and molecular biology
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GAP501%2F10%2F1014" target="_blank" >GAP501/10/1014: Genome evolution in Cardamine allopolyploids of contrasting phylogenetic age</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
American Journal of Botany
ISSN
0002-9122
e-ISSN
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Volume of the periodical
103
Issue of the periodical within the volume
7
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
1187-1196
UT code for WoS article
000380821900005
EID of the result in the Scopus database
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