Using Genomic Resources to Breed Cowpeas With Larger Seeds

摘要: Cowpea (Vigna unguiculata) is a warm-season legume that primarily cultivated for protein rich grain. Seed size an important breeding target distinguishes most domesticated crops from their wild relatives and particularly trait the grain legumes. This dissertation describes efforts to breed cowpea varieties with larger seeds using marker-assisted approaches breeding. The first chapter of this development consensus genetic map 1,107 molecular markers which was constructed by analyzing bead-assay genotype data 13 experimental populations. content organization genome also compared soybean (Glycine max) describe regions synteny. second utilizes map, synteny, phenotypic information collected field greenhouse trials develop associations between allelic variation inheritance seed size. Many were found be syntenic previously associated These marker-trait are applied in third up 52% accomplished introgressing rare Mozambican haplotype into background California blackeyed pea. Preliminary screening identified introgression lines performed well other agronomic traits including yield, maturity, plant architecture. developed work could used as parents deploying large pedigrees studied better understand impact on nutritional performance.