help button home button Genetics eBMJ
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS

Originally published as Genetics Published Articles Ahead of Print on October 8, 2006.

Genetics, Vol. 174, 1493-1504, November 2006, Copyright © 2006
doi:10.1534/genetics.106.060756

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Data Supplement
Right arrow All Versions of this Article:
genetics.106.060756v1
174/3/1493    most recent
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Gu, Y. Q.
Right arrow Articles by Chalhoub, B.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Gu, Y. Q.
Right arrow Articles by Chalhoub, B.

Types and Rates of Sequence Evolution at the High-Molecular-Weight Glutenin Locus in Hexaploid Wheat and Its Ancestral Genomes

Yong Qiang Gu*,1, Jérôme Salse{dagger},{ddagger}, Devin Coleman-Derr*, Adeline Dupin{dagger}, Curt Crossman*, Gerard R. Lazo*, Naxin Huo*, Harry Belcram{dagger}, Catherine Ravel{ddagger}, Gilles Charmet{ddagger}, Mathieu Charles{dagger}, Olin D. Anderson* and Boulos Chalhoub{dagger}

* United States Department of Agriculture-Agricultural Research Service, Western Regional Research Center, Albany, California 94710, {dagger} Laboratory of Genome Organization, Unité de Recherches en Génomique Végétale (URGV-INRA), 91057 Evry Cedex, France and {ddagger} UMR INRA-UBP ASP Amélioration et Santé des Plantes, 63039 Clermont Ferrand, France

1 Corresponding author: USDA-ARS, Western Regional Research Center, 800 Buchanan St., Albany, CA 94710. 
E-mail: ygu{at}pw.usda.gov

The Glu-1 locus, encoding the high-molecular-weight glutenin protein subunits, controls bread-making quality in hexaploid wheat (Triticum aestivum) and represents a recently evolved region unique to Triticeae genomes. To understand the molecular evolution of this locus region, three orthologous Glu-1 regions from the three subgenomes of a single hexaploid wheat species were sequenced, totaling 729 kb of sequence. Comparing each Glu-1 region with its corresponding homologous region from the D genome of diploid wheat, Aegilops tauschii, and the A and B genomes of tetraploid wheat, Triticum turgidum, revealed that, in addition to the conservation of microsynteny in the genic regions, sequences in the intergenic regions, composed of blocks of nested retroelements, are also generally conserved, although a few nonshared retroelements that differentiate the homologous Glu-1 regions were detected in each pair of the A and D genomes. Analysis of the indel frequency and the rate of nucleotide substitution, which represent the most frequent types of sequence changes in the Glu-1 regions, demonstrated that the two A genomes are significantly more divergent than the two B genomes, further supporting the hypothesis that hexaploid wheat may have more than one tetraploid ancestor.




This article has been cited by other articles:


Home page
Mol Biol EvolHome page
C. E. Grover, Y. Yu, R. A. Wing, A. H. Paterson, and J. F. Wendel
A Phylogenetic Analysis of Indel Dynamics in the Cotton Genus
Mol. Biol. Evol., July 1, 2008; 25(7): 1415 - 1428.
[Abstract] [Full Text] [PDF]


Home page
Plant Physiol.Home page
B. A. Kronmiller and R. P. Wise
TEnest: Automated Chronological Annotation and Visualization of Nested Plant Transposable Elements
Plant Physiology, January 1, 2008; 146(1): 45 - 59.
[Abstract] [Full Text] [PDF]


Home page
GeneticsHome page
T. Wicker, N. Yahiaoui, and B. Keller
Contrasting Rates of Evolution in Pm3 Loci From Three Wheat Species and Rice
Genetics, October 1, 2007; 177(2): 1207 - 1216.
[Abstract] [Full Text] [PDF]


Home page
ScienceHome page
J. Dubcovsky and J. Dvorak
Genome Plasticity a Key Factor in the Success of Polyploid Wheat Under Domestication
Science, June 29, 2007; 316(5833): 1862 - 1866.
[Abstract] [Full Text] [PDF]


Home page
Plant CellHome page
N. Shitsukawa, C. Tahira, K.-i. Kassai, C. Hirabayashi, T. Shimizu, S. Takumi, K. Mochida, K. Kawaura, Y. Ogihara, and K. Murai
Genetic and Epigenetic Alteration among Three Homoeologous Genes of a Class E MADS Box Gene in Hexaploid Wheat
PLANT CELL, June 1, 2007; 19(6): 1723 - 1737.
[Abstract] [Full Text] [PDF]




HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2006 by the Genetics Society of America.