J 2007

Ancestral Chromosomal Blocks Are Triplicated in Brassiceae Species with Varying Chromosome Number and Genome Size

LYSÁK, Martin, Kwok CHEUNG, Michaela KITSCHKE and Petr BUREŠ

Basic information

Original name

Ancestral Chromosomal Blocks Are Triplicated in Brassiceae Species with Varying Chromosome Number and Genome Size

Name in Czech

Ancestral Chromosomal Blocks Are Triplicated in Brassiceae Species with Varying Chromosome Number and Genome Size

Authors

LYSÁK, Martin (203 Czech Republic, guarantor, belonging to the institution), Kwok CHEUNG (826 United Kingdom of Great Britain and Northern Ireland), Michaela KITSCHKE (276 Germany) and Petr BUREŠ (203 Czech Republic, belonging to the institution)

Edition

Plant Physiology, USA, American Society of Plant Physiologists, 2007, 0032-0889

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 6.367

RIV identification code

RIV/00216224:14310/07:00019484

Organization unit

Faculty of Science

UT WoS

000249893600011

Keywords in English

chromosomel painting; genome size; chromosomal evolution; paleopolyploidy

Tags

International impact, Reviewed
Změněno: 26/3/2019 20:15, prof. RNDr. Petr Bureš, Ph.D.

Abstract

V originále

Comparative painting analysis of block F of the crucifer Ancestral Karyotype (AK; n=8), consisting of 24 conserved genomic blocks, in 10 species traditionally treated as members of the tribe Brassiceae. Three homeologous copies of block F were identified per haploid chromosome complement in Brassiceae with 2n=14, 18, 20, 32, and 36. In high-polyploid Crambe maritima (2n=60), C. cordifolia (2n=120), and Vella pseudocytisus (2n=68), 6, 12, and 6 copies have been revealed, respectively. In subtribe Zillineae, two of the three homeologous regions were combined via a reciprocal translocation onto one chromosome. Altogether, these findings provide compelling evidence of an ancient hexaploidization event and corresponding whole-genome triplication shared by the tribe Brassiceae. Only two homeologous copies of block F suggest a whole-genome duplication but not the triplication event in Orychophragmus violaceus (2n=24), and confirm its phylogenetic position outside the tribe Brassiceae.

In Czech

Srovnávací paintingová analýza bloku F ancestrálního brukvovitého karyotypu (n=8), sestávajícího z 24 conzervativních genomických bloků, v 10 druzích tradičně považovaných za příslušné k tribu Brassiceae. 3 homeologní kopie bloku F byly identifikovány v haploidním chromosomovém komplementu u Brassiceae s 2n=14, 18, 20, 32 a 36. U vysoce polyploidních Crambe maritima (2n=60), C. cordifolia (2n=120) a Vella pseudocytisus (2n=68), 6, 12, resp. 6 kopií bylo zaznamenáno. V subtribu Zillineae, 2 ze 3 homeologních regionů se kombinovalo reciprokou translokací v rámci 12 chromosomu. Obecně tyto poznatky potvrzují paleo-hexaploidizaci a korespondují s celogenomovou triplikací v rámci tribu Brassiceae. Pouze dvě homeologní kopie bloku F ukazují na celogenomovou duplikaci a ne triplikaci u Orychophragmus violaceus (2n=24) a potvrzují jeho fylogenetické postavení mimo tribus Brassiceae.

Links

KJB601630606, research and development project
Name: Evoluce karyotypu brukvovitých rostlin (Brassicaceae)
Investor: Academy of Sciences of the Czech Republic
LC06073, research and development project
Name: Centrum pro výzkum biodiverzity
Investor: Ministry of Education, Youth and Sports of the CR, Biodiversity Research Center
MSM0021622415, plan (intention)
Name: Molekulární podstata buněčných a tkáňových regulací
Investor: Ministry of Education, Youth and Sports of the CR, Molecular basis of cell and tissue regulations
MSM0021622416, plan (intention)
Name: Diverzita biotických společenstev a populací: kauzální analýza variability v prostoru a čase
Investor: Ministry of Education, Youth and Sports of the CR, Diversity of Biotic Communities and Populations: Causal Analysis of variation in space and time