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Systematics Section / ASPT

Brunell, Mark [1].

Origin and relationships of the Brazoria palmetto (Arecaceae: Sabal) based on AFLP data..

The hybrid origin of an unusual population of caulescent Sabal palms in Brazoria County, Texas, is investigated using AFLP markers. Sampling involved the Brazoria palmetto and the putative parental species, S. minor and S. mexicana. Analysis of AFLP profiles indicates that S. mexicana and its disjunct northern population are very uniform and distinct from both the Brazoria palmetto and S. minor. The Brazoria palmetto and S. minor are largely differentiated but closely related, a pattern suggesting limited gene flow between the two entities. The Brazoria palmetto likely represents either a species closely allied to S. minor or a hybrid between S. minor and another currently unknown parent. Sabal mexicana does not appear to be a factor in the origin of the Brazoria palmetto.


1 - University of the Pacific, Department of Biological Sciences, 3601 Pacific Ave, Stockton, California, 95211, USA

Keywords:
palms
hybridization
AFLP
Sabal minor
Sabal mexicana.

Presentation Type: Paper
Session: 59-11
Location: Cottonwood A (Snowbird Center)
Date: Wednesday, August 4th, 2004
Time: 4:30 PM
Abstract ID:835


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