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Genes 2010, 1(1), 9-22; doi:10.3390/genes1010009

Asymmetric Introgressive Hybridization Among Louisiana Iris Species

1
Department of Genetics, Life Sciences Building, University of Georgia, Athens, GA 30602, USA
2
Trait Genetics and Technologies, Dow AgroSciences LLC, 9330 Zionsville Road, Indianapolis, IN 46268, USA
3
Monsanto Vegetable Seeds, 37437 California Highway 16, Woodland, CA 95695, USA
4
Department of Biology, Texas State University – San Marcos, San Marcos, TX 78666, USA
*
Author to whom correspondence should be addressed.
Received: 2 February 2010 / Revised: 5 March 2010 / Accepted: 11 March 2010 / Published: 15 March 2010
(This article belongs to the Special Issue Reticulate Evolution)
View Full-Text   |   Download PDF [1267 KB, uploaded 15 March 2010]   |  

Abstract

In this review, we discuss findings from studies carried out over the past 20+ years that document the occurrence of asymmetric introgressive hybridization in a plant clade. In particular, analyses of natural and experimental hybridization have demonstrated the consistent introgression of genes from Iris fulva into both Iris brevicaulis and Iris hexagona. Furthermore, our analyses have detected certain prezygotic and postzygotic barriers to reproduction that appear to contribute to the asymmetric introgression. Finally, our studies have determined that a portion of the genes transferred apparently affects adaptive traits. View Full-Text
Keywords: asymmetric introgressive hybridization; Louisiana Irises; segregation distortion; natural hybrid zones asymmetric introgressive hybridization; Louisiana Irises; segregation distortion; natural hybrid zones
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Arnold, M.L.; Tang, S.; Knapp, S.J.; Martin, N.H. Asymmetric Introgressive Hybridization Among Louisiana Iris Species. Genes 2010, 1, 9-22.

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