The vernalization gene FRIGIDA in cultivated Brassica species

The vernalization gene FRIGIDA in cultivated Brassica species The repressor FLOWERING LOCUS C (FLC) holds a key position among the genes, which drive Arabidopsis floral transition along the vernalization pathway. The FRIGIDA (FRI) gene activates FLC expression, and the interplay of strong and weak alleles of FLC and FRI in many cases explains the variations in Arabidopsis requirement for cold induction. In annual and biennial life forms of Brassica, the variations in time to flower have been also related to FLC; whereas the place of FRI in the vernalization process has not been sufficiently elucidated. In contrast to Arabidopsis, FRI in Brassica genomes A and C and presumably B is represented by two expressible loci, FRI.a and FRI.b, each of them manifesting genome-specific polymorphisms. FRI.a and FRI.b sequences from diploid species B. rapa (genome A) and B. oleracea (genome C) are conserved (96–99% similarity) in subgenomes A and C of tetraploid species B. carinata (genome BC), B. juncea (genome AB), and B. napus (genome AC). Phylogenetic analysis of FRI sequences in the genus Brassica clearly discerns the lineages A/C and B, while in the family Brassicaceae, two FRI clusters discriminated by such analysis correspond to the lineages I (including the genus Arabidopsis) and II (including the genus Brassica). The origin of two FRI loci is discussed in the context of the Brassicaceae evolution via paleopolyploidy and subsequent genome reorganization. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

The vernalization gene FRIGIDA in cultivated Brassica species

Loading next page...
 
/lp/springer_journal/the-vernalization-gene-frigida-in-cultivated-brassica-species-LdO90YLRUv
Publisher
Pleiades Publishing
Copyright
Copyright © 2014 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Plant Physiology; Plant Sciences
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1134/S1021443714030030
Publisher site
See Article on Publisher Site

Abstract

The repressor FLOWERING LOCUS C (FLC) holds a key position among the genes, which drive Arabidopsis floral transition along the vernalization pathway. The FRIGIDA (FRI) gene activates FLC expression, and the interplay of strong and weak alleles of FLC and FRI in many cases explains the variations in Arabidopsis requirement for cold induction. In annual and biennial life forms of Brassica, the variations in time to flower have been also related to FLC; whereas the place of FRI in the vernalization process has not been sufficiently elucidated. In contrast to Arabidopsis, FRI in Brassica genomes A and C and presumably B is represented by two expressible loci, FRI.a and FRI.b, each of them manifesting genome-specific polymorphisms. FRI.a and FRI.b sequences from diploid species B. rapa (genome A) and B. oleracea (genome C) are conserved (96–99% similarity) in subgenomes A and C of tetraploid species B. carinata (genome BC), B. juncea (genome AB), and B. napus (genome AC). Phylogenetic analysis of FRI sequences in the genus Brassica clearly discerns the lineages A/C and B, while in the family Brassicaceae, two FRI clusters discriminated by such analysis correspond to the lineages I (including the genus Arabidopsis) and II (including the genus Brassica). The origin of two FRI loci is discussed in the context of the Brassicaceae evolution via paleopolyploidy and subsequent genome reorganization.

Journal

Russian Journal of Plant PhysiologySpringer Journals

Published: Apr 27, 2014

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve Freelancer

DeepDyve Pro

Price
FREE
$49/month

$360/year
Save searches from Google Scholar, PubMed
Create lists to organize your research
Export lists, citations
Read DeepDyve articles
Abstract access only
Unlimited access to over
18 million full-text articles
Print
20 pages/month
PDF Discount
20% off