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Abstract Detail


Genetics Section

Taylor, S.J. [1], Martin, Noland H. [1].

The genetic architecture of reproductive isolation in Louisiana Iris : Iris nelsonii x I. hexagona .

Iris nelsonii is a purported homoploid hybrid species between three widespread Louisiana irises. In an attempt to understand the genetic architecture of reproductive isolation between this species and one of its progenitors, we developed an F2 mapping population between Iris nelsonii and Iris hexagona. A linkage map was created and used to identify genomic regions that experienced transmission ratio distortion. Furthermore, QTL analyses revealed regions associated with pollen and ovule viability and the divergent floral morphologies of these two species.


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1 - Texas State University, Department of Biology, 601 University Drive, San Marcos, Texas, 78666, USA

Keywords:
genetic linkage mapping
Genetic basis of species diifferences.

Presentation Type: Oral Paper:Papers for BSA Sections
Session: 12
Location: Cottonwood C/Snowbird Center
Date: Monday, July 27th, 2009
Time: 9:15 AM
Number: 12002
Abstract ID:284


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