Publications des scientifiques de l'IRD

Andargie M., Knudsen J. T., Pasquet Rémy, Gowda B. S., Muluvi G. M., Timko M. P. (2014). Mapping of quantitative trait loci for floral scent compounds in cowpea (Vigna unguiculata L.). Plant Breeding, 133 (1), p. 92-100. ISSN 0179-9541.

Titre du document
Mapping of quantitative trait loci for floral scent compounds in cowpea (Vigna unguiculata L.)
Année de publication
2014
Type de document
Article référencé dans le Web of Science WOS:000330800600013
Auteurs
Andargie M., Knudsen J. T., Pasquet Rémy, Gowda B. S., Muluvi G. M., Timko M. P.
Source
Plant Breeding, 2014, 133 (1), p. 92-100 ISSN 0179-9541
Floral scent is a very important trait in plant evolution. Currently, little is known about the inheritance of floral scent in cowpea (Vigna unguiculata L.) or changes that might have occurred during its domestication. Therefore, we analysed scent volatiles and molecular markers in a population of 159F(7) recombinant inbred lines derived from a cross of a domesticated blackeye cowpea cultivar, 524B' and a wild accession 219-01'. Using gas chromatography-mass spectrometry (GC-MS) 23 volatile compounds were identified that fall into five general functional categories. Twenty-two of the compounds displayed quantitative variation in the progeny, and a total of 63 QTLs influencing the amounts of these volatiles were mapped onto the cowpea genetic marker map. Although QTLs for volatile compounds putatively involved in cowpea flower scent were found on 9 of the 11 cowpea chromosomes, they were not evenly distributed with QTLs mainly clustered on LGs 1, LGs 2 and LG 4. Our results serve as a starting point for both more detailed analyses of complex scent biosynthetic pathways and the development of markers for marker-assisted breeding of scented rose varieties.
Plan de classement
Sciences du monde végétal [076]
Description Géographique
KENYA
Localisation
Fonds IRD [F B010061753]
Identifiant IRD
fdi:010061753
Contact