Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 408979
Title The genome of the mesopolyploid crop species Brassica rapa
Author(s) Wang, Xiaowu; Wang, Hanzhong; Sun, Rifei; Bonnema, A.B.
Source Nature Genetics 43 (2011). - ISSN 1061-4036 - p. 1035 - 1039.
DOI https://doi.org/10.1038/ng.919
Department(s) Laboratory of Plant Breeding
EPS-3
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) plant arabidopsis-thaliana - duplicated genes - sequence - evolution - diversification - triplication - repressor - alignment - lineages - genetics
Abstract We report the annotation and analysis of the draft genome sequence of Brassica rapa accession Chiifu-401-42, a Chinese cabbage. We modeled 41,174 protein coding genes in the B. rapa genome, which has undergone genome triplication. We used Arabidopsis thaliana as an outgroup for investigating the consequences of genome triplication, such as structural and functional evolution. The extent of gene loss (fractionation) among triplicated genome segments varies, with one of the three copies consistently retaining a disproportionately large fraction of the genes expected to have been present in its ancestor. Variation in the number of members of gene families present in the genome may contribute to the remarkable morphological plasticity of Brassica species. The B. rapa genome sequence provides an important resource for studying the evolution of polyploid genomes and underpins the genetic improvement of Brassica oil and vegetable crops
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