Evidence for spontaneous polyploidization in cassava Manihot esculenta Crantz
Sardos Julie, Rodier-Goud Marguerite, Dambier Dominique, Malapa Roger, Noyer Jean-Louis, Lebot Vincent. 2009. .
ARTICLE, (2009 ) - PUBLISHEDVERSION - English (en-GB)
RESTRICTEDACCESS -
Cirad license, info:eu-repo/semantics/restrictedAccess, https://agritrop.cirad.fr/mention_legale.html.
Audience : RESEARCHERS
Subject
F30 - Génétique et amélioration des plantes, F60 - Physiologie et biochimie végétale, F70 - Taxonomie végétale et phytogéographie, Manihot esculenta, http://aims.fao.org/aos/agrovoc/c_4579, http://aims.fao.org/aos/agrovoc/c_5159
Domains
Agriculture, Culture
Description
Cassava, Manihot esculenta Crantz (Euphorbiaceae), is a major tropical crop. It is a diploid and sexually fertile, but confined to vegetative propagation in agriculture. While polyploidization is a major evolutionary process in higher plants and is of importance in the creation of improved crop varieties, spontaneous polyploidization is poorly documented for M. esculenta. Molecular and cytological evidence is provided here for two cases of intraspecific triploidization events that occurred in smallholders' fields in Vanuatu, South Pacific. We then discuss the implications of triploidy for the crop and highlight the importance of this discovery for the evolution of this species in traditional cropping systems.
Keywords
Agriculture, Géographie
Creators
Sardos, Julie, Rodier-Goud, Marguerite, Dambier, Dominique, Malapa, Roger, Noyer, Jean-Louis, Lebot, Vincent
Sources
Plant Systematics and Evolution
