help button home button Genetics J Histo Cito
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Originally published as Genetics Published Articles Ahead of Print on June 11, 2007.

Genetics, Vol. 176, 2577-2588, August 2007, Copyright © 2007
doi:10.1534/genetics.107.074518

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Data Supplement
Right arrow All Versions of this Article:
genetics.107.074518v1
176/4/2577    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 Rong, J.
Right arrow Articles by Paterson, A. H.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Rong, J.
Right arrow Articles by Paterson, A. H.

Meta-analysis of Polyploid Cotton QTL Shows Unequal Contributions of Subgenomes to a Complex Network of Genes and Gene Clusters Implicated in Lint Fiber Development

Junkang Rong*, F. Alex Feltus*, Vijay N. Waghmare{dagger}, Gary J. Pierce*, Peng W. Chee{ddagger}, Xavier Draye§, Yehoshua Saranga**, Robert J. Wright{dagger}{dagger}, Thea A. Wilkins{dagger}{dagger}, O. Lloyd May{ddagger}, C. Wayne Smith{ddagger}{ddagger}, John R. Gannaway§§, Jonathan F. Wendel*** and Andrew H. Paterson*,1

* Plant Genome Mapping Laboratory and {ddagger} Coastal Plains Experiment Station, University of Georgia, Athens, Georgia 30602, {dagger} Division of Crop Improvement, Central Institute for Cotton Research, Nagpur, India, § Université catholique de Louvain Place Croix du Sud 2/11–1348, Louvain-la-Neuve, Belgium, ** The RH Smith Institute of Plant Science and Genetics in Agriculture, The Hebrew University of Jerusalem, Rehovot 76100, Israel, {dagger}{dagger} Department of Plant and Soil Science, Texas Tech University, Lubbock, Texas 79409, {ddagger}{ddagger} Department of Soil and Crop Science, Texas A&M University, College Station, Texas 77843, §§ Texas A&M Research and Extension Center, Lubbock, Texas 79401, *** Department of Ecology, Evolution, and Organismal Biology, Iowa State University, Ames, Iowa 50011

1 Corresponding author: Plant Genome Mapping Laboratory, University of Georgia, 111 Riverbend Rd., Rm. 228, Athens, GA 30602.
E-mail: paterson{at}uga.edu

QTL mapping experiments yield heterogeneous results due to the use of different genotypes, environments, and sampling variation. Compilation of QTL mapping results yields a more complete picture of the genetic control of a trait and reveals patterns in organization of trait variation. A total of 432 QTL mapped in one diploid and 10 tetraploid interspecific cotton populations were aligned using a reference map and depicted in a CMap resource. Early demonstrations that genes from the non-fiber-producing diploid ancestor contribute to tetraploid lint fiber genetics gain further support from multiple populations and environments and advanced-generation studies detecting QTL of small phenotypic effect. Both tetraploid subgenomes contribute QTL at largely non-homeologous locations, suggesting divergent selection acting on many corresponding genes before and/or after polyploid formation. QTL correspondence across studies was only modest, suggesting that additional QTL for the target traits remain to be discovered. Crosses between closely-related genotypes differing by single-gene mutants yield profoundly different QTL landscapes, suggesting that fiber variation involves a complex network of interacting genes. Members of the lint fiber development network appear clustered, with cluster members showing heterogeneous phenotypic effects. Meta-analysis linked to synteny-based and expression-based information provides clues about specific genes and families involved in QTL networks.




This article has been cited by other articles:


Home page
 GeneticsHome page
R. Hovav, B. Chaudhary, J. A. Udall, L. Flagel, and J. F. Wendel
Parallel Domestication, Convergent Evolution and Duplicated Gene Recruitment in Allopolyploid Cotton
Genetics, July 1, 2008; 179(3): 1725 - 1733.
[Abstract] [Full Text] [PDF]

Home page
 Proc. Natl. Acad. Sci. USAHome page
R. Hovav, J. A. Udall, B. Chaudhary, R. Rapp, L. Flagel, and J. F. Wendel
Partitioned expression of duplicated genes during development and evolution of a single cell in a polyploid plant
PNAS, April 22, 2008; 105(16): 6191 - 6195.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2007 by the Genetics Society of America.