Molecular mapping of QTLs for domestication-related traits in cowpea (V. unguiculata (L.) Walp.)

Autor:	Mebeaselassie Andargie, Bhavani S. Gowda, Michael P. Timko, Geoffrey M. Muluvi, Remy S. Pasquet
Rok vydání:	2014
Předmět:	Genetics Germplasm education.field_of_study biology fungi Population food and beverages Plant Science Horticulture Quantitative trait locus biology.organism_classification Vigna Pleiotropy Genetic linkage Chromosome regions Botany education Domestication Agronomy and Crop Science
Zdroj:	Euphytica. 200:401-412
ISSN:	1573-5060 0014-2336
DOI:	10.1007/s10681-014-1170-9
Popis:	Understanding the genetic basis underly- ing domestication-related traits (DRTs) of cowpea (Vigna unguiculata (L.) Walp.) is important since the genome has experienced divergent domestication and in addition it is also useful to utilize the wild germplasm efficiently for improving different traits of the cultivated cowpea. Quantitative trait loci (QTLs) for DRTs were identified in a population of 159 F7 recombinant inbred lines derived from a cross between a domesticated cowpea (V. unguiculata (L.) Walp.) variety, 524B, and a wild accession, 219. Using the constructed linkage map, QTLs for 10 DRTs were analysed and mapped. QTLs for seed, pod and flower related traits were detected. Subsequently, QTL for ovule number was also identified. To our knowledge, this is the first time a QTL for this trait has been observed. QTLs for DRTs show co-localization on three linkage groups and pleiotropy or close linkage of genes for the traits is suggested in these chromosome regions. The information gained in this study can be used for marker-assisted selection of domestication- related QTLs in cowpea and enhance understanding of domestication in the genus Vigna.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4d07e59043efd3b3d24013fd0e1a92b7 https://doi.org/10.1007/s10681-014-1170-9 Zobrazit plný text záznamu Plný text ve formátu PDF