Ploidy levels of Dioscorea alata L. germplasm determined by flow cytometry

• Type: Article in International Scientific Journal
• Date: 2010

Authors

Obidiegwu, J (Author) Other; Rodriguez, E (Author) Other; Ene Obong, E (Author) Other; Loureiro, J (Author) Other; Muoneke, C (Author) Other; Santos, C (Author) Other; Kolesnikova Allen, M (Author) Other; Asiedu, R (Author) Other

Journal

Title: Genetic Resources and Crop Evolution

Vol. 57

Pages: 351-356

ISSN: 0925-9864

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 10 Citations

Scopus - 12 Citations

Other information

Authenticus ID: P-003-8N2

DOI: 10.1007/s10722-009-9473-8

Abstract (EN): Dioscorea alata L. is a highly important crop, widely distributed in the humid and semi-humid tropics. Flow cytometry was used to determine the ploidy levels of 74 D. alata genotypes collected mainly from West African countries. Sixty three of the genotypes were found to be tetraploid, one was hexaploid and ten were octoploid. The high percentage of tetraploids together with the small percentage of hexaploid individuals and the absence of diploid individuals gives us some more clues on the possible origin of these species. No association between ploidy level and place of cultivation was found for the tested material. The obtained results represent important knowledge for enhancing the breeding methodologies and optimize germplasm management of this species. It also offers further insights to the phylogeny and evolution of Dioscorea species.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6