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Abstract Detail



Population Genetics/Genomics

Palacio-Mej√≠a , Juan Diego [1], Haque, Taslima [1], Ortiz, Edgardo M. [2], Juenger, Thomas E. [3].

Population genomics in the native grass Panicum hallii.

Since early in the last century, the field of ecological genetics has provided abundant evidence that selection can produce differentiated and locally adapted populations, generating a gradient of character variation through the natural range of species distribution. In this study we determinate the genomic diversity and structure of Panicum hallii, a native Southwestern grass of United States and North of Mexico. We characterized 582 individuals from 123 localities across its natural distributions in The United States and Mexico from samples for the two species varieties: var. hallii and var. filipes. Genotypic data from 41 individuals of P. hallii var. filipes and 563 individuals of P. hallii var. hallii were obtained using double digestion restriction associated DNA (ddRAD) sequencing technic. Our results show three main genetic clusters: one big cluster corresponds to var. hallii populations, a second cluster corresponds to var. filipes and an interesting third group correspond an admixed cluster which include populations for both varieties suggested a possible hybridization between.


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Related Links:
Juenger lab


1 - The University of Texas at Austin, Integrative biology, 1 University Station C0930, Austin, Texas, 78712, USA
2 - The University of Texas at Austin, Integrative biology, 1 University Station, C0930, Austin, Texas, 78712, USA
3 - University Of Texas At Austin, Section Of Integrative Biology, 2401 Speedway Blvd., Austin, TX, 78712, USA

Keywords:
ddRAD
Genetic structure
population structure
Local adaptation.

Presentation Type: Oral Paper
Number: 0002
Abstract ID:89
Candidate for Awards:Margaret Menzel Award


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