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Abstract Detail

Genetics Section

Taylor, S.J. [1], Martin, Noland H. [2].

The genetic architecture of reproductive isolation in Louisiana Iris.

Many closely related species express divergent pollinator syndromes suggesting that pollinator shifts commonly result in reproductive isolation between closely related species. The genetic architecture that underlies traits associated with “pollinator syndromes” provides clues about the importance of that trait in the pollinator shift, and thus reproductive isolation between lineages. We investigated the genetic architecture of floral color and morphology in a cross between hummingbird-pollinated Iris nelsonii and bumblebee-pollinated I. hexagona. We identified QTLs associated with variation in anthocyanin concentration and morphology in the F2 population and tested the effects of these loci on pollinator visitation in the field.

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1 - Texas State University, Department of Biology, 601 University Drive, San Marcos, Texas, 78666, USA
2 - Texas State University-San Marcos, Department of Biology, 601 University Dr., San Marcos, TX, 78666, USA

genetic linkage mapping
QTL mapping
pollinator isolation.

Presentation Type: Oral Paper:Papers for Sections
Session: 15
Location: 555A/Convention Center
Date: Monday, August 2nd, 2010
Time: 2:00 PM
Number: 15003
Abstract ID:58

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