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Abstract Detail

Genomics / Proteomics

Brown, Jennifer [1], Hawkins, Kevin [1], McDermott, Ross [1], Moore, Richard [2].

The relationship between recombination and genomic diversity in Carica papaya.

Recombination is a process that creates and destroys allelic combinations within an organism's genome. This process magnifies the reduction of neutral genetic diversity that is a signature of directional selection. Previous studies have obtained conflicting results as to the relationship between genetic diversity and recombination. In order to further assess the correlation among these factors, I will determine the genetic diversity of 48 papaya (Carica papaya) individuals from 42 autosomal loci from genomic regions of varying recombination. These 42 loci will be subdivided into three groups consisting of 14 loci each from regions of low, average, and high recombination rates. These data will be compared to sequence divergence data obtained from Jacaratia dolichaula. From these data, I will assess the relationship among recombination, diversity, and divergence, as well as look for signatures of selection. The results from this study will be used in a comparative study to determine whether the pericentromeric position of the papaya sex chromosomes has impacted the level of genetic diversity and frequency of selection.

Broader Impacts:

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1 - Miami University, Botany, 316 Pearson Hall, Oxford, OH, 45056, USA
2 - Miami University, Botany, 316 Pearson, Oxford, OH, 45056, USA

none specified

Presentation Type: Oral Paper:Papers for Topics
Session: 44
Location: Union B/Hyatt
Date: Wednesday, July 11th, 2012
Time: 8:15 AM
Number: 44002
Abstract ID:243

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