Organization and evolution of two repetitive sequences, 18-24J and 12-13P, in the genome of Chenopodium (Amaranthaceae)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081707%3A_____%2F18%3A00495174" target="_blank" >RIV/68081707:_____/18:00495174 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1139/gen-2018-0044" target="_blank" >http://dx.doi.org/10.1139/gen-2018-0044</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1139/gen-2018-0044" target="_blank" >10.1139/gen-2018-0044</a>
Alternative languages
Result language
angličtina
Original language name
Organization and evolution of two repetitive sequences, 18-24J and 12-13P, in the genome of Chenopodium (Amaranthaceae)
Original language description
The abundance and chromosomal organization of two repetitive sequences named 12-13P and 18-24J were analyzed in 24 diploid and nine polyploid species of Chenopodium s.l., with special attention to Chenopodium s.s. Both sequences were predominantly present in species of Chenopodium s.s., however, differences in the amplification levels were observed among the species. The 12-13P repeat was highly amplified in all of the analyzed Eurasian species, whereas the American diploids showed a marked variation in the amplification levels. The 12-13P repeat contains a tandemly arranged 40 bp minisatellite element forming a large proportion of the genome of Chenopodium (up to 3.5%). FISH revealed its localization to the pericentromeric regions of the chromosomes. The chromosomal distribution of 12-13P delivered additional chromosomal marker for B-genome diploids. The 18-24J repeat showed a dispersed organization in all of the chromosomes of the analyzed diploid species and the Eurasian tetraploids. In the American allotetraploids (C. quinoa, C. berlandieri) and Eurasian allohexaploids (e.g., C. album) very intense hybridization signals of 18-24J were observed only on 18 chromosomes that belong to the B subgenome of these polyploids. Combined cytogenetic and molecular analyses suggests that reorganization of these two repeats accompanied the diversification and speciation of diploid (especially A genome) and polyploid species of Chenopodium s.s.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10608 - Biochemistry and molecular biology
Result continuities
Project
<a href="/en/project/GBP501%2F12%2FG090" target="_blank" >GBP501/12/G090: Evolution and Function of Complex Plant Genomes</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Genome
ISSN
0831-2796
e-ISSN
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Volume of the periodical
61
Issue of the periodical within the volume
9
Country of publishing house
CA - CANADA
Number of pages
10
Pages from-to
643-652
UT code for WoS article
000444103900003
EID of the result in the Scopus database
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