Recent degeneration of an old duplicated flowering time gene in Brassica nigra
نویسندگان
چکیده
منابع مشابه
Functional and Evolutionary Analysis of Flowering Time Genes in Brassica nigra and Physcomitrella patens
Hedman, H. 2008. Functional and evolutionary analysis of flowering time genes in Brassica nigra and Physcomitrella patens. Doctor's dissertation. ISSN 1652-6880, ISBN 978-91-85913-88-6. Plant genomes harbour many gene families reminiscent of previous duplication events. In this thesis, the molecular evolution of duplicated genes is analysed with special emphasis on flowering-time genes. In Bras...
متن کاملFlowering Time Gene Variation in Brassica Species Shows Evolutionary Principles
Flowering time genes have a strong influence on successful reproduction and life cycle adaptation. However, their regulation is highly complex and only well understood in diploid model systems. For crops with a polyploid background from the genus Brassica, data on flowering time gene variation are scarce, although indispensable for modern breeding techniques like marker-assisted breeding. We ha...
متن کاملNaturally occurring indel variation in the Brassica nigra COL1 gene is associated with variation in flowering time.
Previous QTL mapping identified a Brassica nigra homolog to Arabidopsis thaliana CO as a candidate gene affecting flowering time in B. nigra. Transformation of an A. thaliana co mutant with two different alleles of the B. nigra CO (Bni COa) homolog, one from an early-flowering B. nigra plant and one from a late one, did not show any differential effect of the two alleles on flowering time. The ...
متن کاملThe association of flowering time quantitative trait loci with duplicated regions and candidate loci in Brassica oleracea.
A population of 150 doubled haploid lines of rapid cycling Brassica oleracea, derived from an F1 from a var. alboglabra x var. italica cross, was scored for flowering time in two trials. Using information on 82 mapped molecular markers, spread evenly across the nine linkage groups, QTL were identified at six locations; one each on linkage groups O2 and O3 and two each on linkage groups O5 and O...
متن کاملAdaptive loss of an old duplicated gene during incipient speciation.
To probe the role of natural selection in species origin, we performed a DNA polymorphism survey of the Drosophila melanogaster desaturase2 (ds2) locus. ds2 is responsible for a cuticular hydrocarbon difference between two behaviorally isolated races--Zimbabwe (Z) and Cosmopolitan (M). The ds2 allele prevalent in the Z populations is functional, while the allele from the M populations harbors a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Heredity
سال: 2007
ISSN: 0018-067X,1365-2540
DOI: 10.1038/sj.hdy.6800951