High-resolution genetic map for understanding the effect of genome-wide recombination rate on nucleotide diversity in watermelon.
Bottom Line: We assessed the genome-wide variation in recombination rate (GWRR) across the map and found an association between GWRR and genome-wide nucleotide diversity.LD decay was estimated for various chromosomes.We identified a strong selective sweep on chromosome 3 consisting of important genes that might have had a role in sweet watermelon domestication.
Affiliation: Gus R. Douglass Institute, Department of Biology, West Virginia State University, Institute, West Virginia 25112-1000 email@example.com.Show MeSH
Related in: MedlinePlus
Mentions: Observed nucleotide diversity was mapped against the physical map to show the pattern of distribution. Nucleotide diversity varied within and across the chromosomes. Mean and SD of nucleotide diversity (observed and expected) for cultivated and semi-wild watermelon are provided in Table 1. The difference in nucleotides between semi-wild and cultivated watermelon was largest for the chromosome 3 as compared with the other chromosomes, so this chromosome harbors mutations and genes of importance for the process of domestication. Moreover, nucleotide diversity was the least in chromosome 3, which supports this chromosome harboring signals of domestication (Figure 5).
Affiliation: Gus R. Douglass Institute, Department of Biology, West Virginia State University, Institute, West Virginia 25112-1000 firstname.lastname@example.org.