Comparative Analysis of FLC Homologues in Brassicaceae Provides Insight into Their Role in the Evolution of Oilseed Rape.

Zou, X. X., Suppanz, I., Raman, H., Hou, J. N., Wang, J., Long, Y., Jung, Christian and Meng, J. L. (2012) Comparative Analysis of FLC Homologues in Brassicaceae Provides Insight into Their Role in the Evolution of Oilseed Rape. Open Access PLoS ONE, 7 (9). DOI 10.1371/journal.pone.0045751.

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Supplementary data:

Abstract

We identified nine FLOWERING LOCUS C homologues (BnFLC) in Brassica napus and found that the coding sequences of all BnFLCs were relatively conserved but the intronic and promoter regions were more divergent. The BnFLC homologues were mapped to six of 19 chromosomes. All of the BnFLC homologues were located in the collinear region of FLC in the Arabidopsis genome except BnFLC.A3b and BnFLC.C3b, which were mapped to noncollinear regions of chromosome A3 and C3, respectively. Four of the homologues were associated significantly with quantitative trait loci for flowering time in two mapping populations. The BnFLC homologues showed distinct expression patterns in vegetative and reproductive organs, and at different developmental stages. BnFLC.A3b was differentially expressed between the winter-type and semi-winter-type cultivars. Microsynteny analysis indicated that BnFLC.A3b might have been translocated to the present segment in a cluster with other flowering-time regulators, such as a homologue of FRIGIDA in Arabidopsis. This cluster of flowering-time genes might have conferred a selective advantage to Brassica species in terms of increased adaptability to diverse environments during their evolution and domestication process.

Document Type: Article
Keywords: flowering-locus-c quantitative trait loci arabidopsis-thaliana linkage map comparative genomics protein complex time-variation qtl analysis napus l. gene
Research affiliation: Kiel University > Kiel Marine Science
OceanRep > The Future Ocean - Cluster of Excellence
Kiel University
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1371/journal.pone.0045751
ISSN: 1932-6203
Projects: Future Ocean
Date Deposited: 14 May 2014 09:07
Last Modified: 30 Jul 2019 06:52
URI: http://oceanrep.geomar.de/id/eprint/24313

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