Document Detail

Comparison of genome structure between white clover and Medicago truncatula supports homoeologous group nomenclature based on conserved synteny.
MedLine Citation:
PMID:  18956023     Owner:  NLM     Status:  MEDLINE    
Computational analysis has been used to align the genetic map of white clover (Trifolium repens L.) with the draft genome sequence of the model legume species Medicago truncatula Gaertn. In silico comparison based on white clover expressed sequence tags that contain simple sequence repeat loci revealed substantial macrosynteny between the genomes of these two species, which are closely related within the Trifolieae tribe of the Fabaceae family. Six of the eight homoeologous chromosome groups (HGs) of allotetraploid white clover show predominant relationships with single M. truncatula (Mt) chromosomes, while the two remaining groups may have participated in an evolutionary reciprocal translocation event. On this basis, a new chromosome nomenclature system for allotetraploid white clover is proposed such that HG A = 3, HG B = 8, HG C = 7, HG D = 4, HG E = 1, HG F = 2, HG G = 5, and HG H = 6. A rationalized linkage map ordering system has also been demonstrated. Improved knowledge of the relationships between agricultural and model forage legume genomes will facilitate prediction of gene location for key agronomic traits for pasture production.
Julie George; Timothy I Sawbridge; Noel O I Cogan; Anthony R Gendall; Kevin F Smith; German C Spangenberg; John W Forster
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Genome / National Research Council Canada = Génome / Conseil national de recherches Canada     Volume:  51     ISSN:  0831-2796     ISO Abbreviation:  Genome     Publication Date:  2008 Nov 
Date Detail:
Created Date:  2008-10-28     Completed Date:  2009-02-04     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8704544     Medline TA:  Genome     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  905-11     Citation Subset:  IM    
Department of Primary Industries, Biosciences Research Division, Victorian AgriBiosciences Centre, La Trobe University Research and Development Park, Bundoora, Victoria 3083, Australia.
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MeSH Terms
Chromosome Mapping
DNA, Plant / genetics
Evolution, Molecular
Expressed Sequence Tags
Genome, Plant
Medicago truncatula / classification*,  genetics*
Minisatellite Repeats
Species Specificity
Terminology as Topic
Trifolium / classification*,  genetics*
Reg. No./Substance:
0/DNA, Plant

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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