Originally published as Genetics Published Articles Ahead of Print on May 15, 2006.

Genetics, Vol. 173, 1823-1827, July 2006, Copyright © 2006
doi:10.1534/genetics.106.058271

A Novel Approach for Characterizing Expression Levels of Genes Duplicated by Polyploidy

* Department of Ecology, Evolution, and Organismal Biology, Iowa State University, Ames, Iowa 50011 and {dagger} Department of Statistics, Iowa State University, Ames, Iowa 50011

1 Corresponding author: Iowa State University, 251 Bessey Hall, Ames, IA 50011.
E-mail: jaudall{at}iastate.edu

Studying gene expression in polyploids is complicated by genomewide gene duplication and the problem of distinguishing transcript pools derived from each of the two homeologous genomes such as the A- and D-genomes of allotetraploid Gossypium. Short oligonucleotide probes designed to specifically target several hundred homeologous gene pairs of Gossypium were printed on custom NimbleGen microarrays. These results demonstrate that relative expression levels of homeologous genes may be measured by microarrays and that deviation from equal expression levels of homeologous loci may be common in the allotetraploid nucleus of Gossypium.




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 page
Plant CellHome page
N. M. Springer and R. M. Stupar
Allele-Specific Expression Patterns Reveal Biases and Embryo-Specific Parent-of-Origin Effects in Hybrid Maize
PLANT CELL, August 1, 2007; 19(8): 2391 - 2402.
[Abstract] [Full Text] [PDF]


Home page
J HeredHome page
K. L. Adams
Evolution of Duplicate Gene Expression in Polyploid and Hybrid Plants
J. Hered., March 1, 2007; 98(2): 136 - 141.
[Abstract] [Full Text] [PDF]