| Abstract Detail
Genome Evolution Suwabe, Keita [1], Morgan, Colin [1], Bancroft, Ian [1]. Comparative genetics and genomics in the Brassicaceae: the evolution of clubroot resistance. The cultivated Brassica species represent the group of crops most closely related to Arabidopsis thaliana, the model plant for dicots. Recent studies in this species have yielded new insights into plant genetics and genomics. With a completion of the full-genome sequencing of A. thaliana, a pattern of segmental chromosomal collinearity has been identified between Arabidopsis and Brassica crops. The level of genomic synteny between them provides a good opportunity to study how genetic and morphological variation has developed during the evolution of the genome, including the endurance of certain genetic structures in Arabidopsis and related Brassica species. The international research community has launched a Multinational Brassica Genome Project, one aim of which is to sequence the genome of a Brassica species. The genome chosen, on the basis that it is the smallest Brassica genome, is that of Chinese cabbage, B. rapa. To take a full advantage of such efforts, we aim to integrate genetic and genomic resources across the Brassicaceae and focus on genetic map integration of Brassica A genome within the most important Brassica crop especially in North America and Europe, oilseed rape (B. napus), the species adopted for genome sequencing, B. rapa, and the model species, A. thaliana. This will contribute to an understanding of the genetic and chromosomal relationship between them and open new avenues for improvement of Brassica crops. It will also yield interesting insights into various researches such as an evolution of plant genome including polyploidy, genomic rearrangement, and synteny. We also discuss the evolution of clubroot resistance, as an example of comparative genomics in the Brassicaceae.
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1 - John Innes Centre, Crop Genetics, Norwich Research Park, Colney, Norwich, Norfork, NR4 7UH, UK
Keywords:
Arabidopsis thaliana
Brassica napus
Brassica rapa
linkage map
Microsatellites (SSRs).
Presentation Type: Plant Biology Abstract
Session: P
Location: Exhibit Hall (Northeast, Southwest & Southeast)/Hilton
Date: Sunday, July 8th, 2007
Time: 8:00 AM
Number: P40021
Abstract ID:2589 |
