Mapping of quantitative trait loci for floral scent compounds in cowpea (Vigna unguiculata L.)

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dc.contributor.authorAndargie, M.
dc.contributor.authorKnudsen, J. T.
dc.contributor.authorPasquet, R. S.
dc.contributor.authorGowda, B. S.
dc.contributor.authorMuluvi, G. M.
dc.contributor.authorTimko, M. P.
dc.date.accessioned2014-06-04T06:34:51Z
dc.date.available2014-06-04T06:34:51Z
dc.date.issued2014-02
dc.descriptionDOI: 10.1111/pbr.12112en_US
dc.description.abstractFloral 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 159 F7 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.en_US
dc.identifier.citationPlant Breeding Volume 133, Issue 1, pages 92–100, February 2014en_US
dc.identifier.issn0179-9541
dc.identifier.other1439-0523
dc.identifier.urihttp://ir-library.ku.ac.ke/handle/123456789/9770
dc.language.isoenen_US
dc.publisherWileyen_US
dc.subjectcowpeaen_US
dc.subjectquantitative trait locusen_US
dc.subjectrecombinant inbred linesen_US
dc.subjectscenten_US
dc.titleMapping of quantitative trait loci for floral scent compounds in cowpea (Vigna unguiculata L.)en_US
dc.typeArticleen_US
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