Publications Scientifiques

[ Article ] Phenetic characterization of Citrullus spp. (Cucurbitaceae) and differentiation of egusi type (C. mucosospermus)

Date de soumission: 21-02-2017
Année de Publication: 2015
Entité/Laboratoire Laboratoire d'Ecologie Appliquée (LEA)
Document type : Article
Discipline(s) : Agriculture & Agronomie
Titre Phenetic characterization of Citrullus spp. (Cucurbitaceae) and differentiation of egusi type (C. mucosospermus)
Auteurs ACHIGAN DAKO ENOCK GBÈNAKO [1], LINSOUSSI AGOSSA CÔME [3], AVOHOU Edgar S. [2], AHANCHEDE ADAM [4], VODOUHE RAYMOND [5], BLATTNER Franck R. [6],
Journal: Genetic Resources and Crop Evolution
Catégorie Journal: Internationale
Impact factor: 1.258
Volume Journal: 62
DOI: 10.1007/s10722-015-0220-z
Resume Breeding of Citrullus spp. for various benefits has continuously raised interest particularly for economically important crops. However, the interspecific variations within the genus have remained obscure in many regards and the multitude of names for taxa and subtaxa eludes Citrullus breeders. In the absence of clear taxonomic differentiation, molecular analysis of phenotypes did not help understand the complexity of this genus until recently. In this study we carried out a phenetic characterization of a world collection of 213 accessions using 22 agro-morphological descriptors in field trials conducted in two locations and during two consecutive years. Multivariate analyses confirmed high morphological variation in Citrullus spp. and highlight C. mucosospermus as a homogenous group separated from other Citrullus species. This differentiation of egusi-type melon will help leverage breeding and conservation purposes as C. lanatus represent very important economic crops in the world. Based on our findings we conclude that our knowledge of the relationships between genetic variations and phenotypic traits and the determinism of morphological variations among and within Citrullus need to be further deepened.
Mots clés Breeding prospectsCitrullus spp.EgusiMorphological markersTaxonomy
Pages 1159 - 1179
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