Publications by authors named "Yan R Tomason"
Transcriptome landscape reveals the molecular mechanisms involved in the improvement of fruit traits by the grafting of watermelon and bottle gourd. Grafting has been used as a sustainable alternative for watermelon breeding to control soil-borne pathogens and to increase tolerance to various abiotic stresses. However, some reports have shown that grafting can negatively affect the quality of fruits.
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- Melon is a diverse diploid plant with different types that affect fruit firmness, a key trait for transportation and shelf life.* -
- Research generated over 13,000 SNP markers to investigate genetic variation and population structure among melon types, revealing significant introgression and haplotypes.* -
- The study identified important QTLs for fruit firmness using advanced mapping techniques, linking specific SNPs to genes related to fruit ripening and softening.*
Article Synopsis
- - The study uses microsatellites to analyze genetic diversity in watermelons, focusing on population structure, linkage disequilibrium, and selection during domestication and improvement.
- - Researchers identified thirty selective sweep regions in the watermelon genome, locating these in various gene-related areas and noting evidence of convergent evolution between American and European ecotypes.
- - Specific microsatellites, such as BVWS00358 and BVWS01708, were linked to key genes involved in transcription regulation and fruit characteristics, like fruit length and rind thickness.
Article Synopsis
- * By examining genome-wide nucleotide diversity and linkage disequilibrium among wild, semi-wild, and domesticated watermelon, we tracked signs of domestication and discovered key differences between these groups.
- * Our findings included a significant selective sweep on chromosome 3 linked to genes crucial for the domestication of sweet watermelon, as well as population structure insights revealing ancestral relationships among accessions.
Background: A large single nucleotide polymorphism (SNP) dataset was used to analyze genome-wide diversity in a diverse collection of watermelon cultivars representing globally cultivated, watermelon genetic diversity. The marker density required for conducting successful association mapping depends on the extent of linkage disequilibrium (LD) within a population. Use of genotyping by sequencing reveals large numbers of SNPs that in turn generate opportunities in genome-wide association mapping and marker-assisted selection, even in crops such as watermelon for which few genomic resources are available.
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