Bookcover of Analysis of intra-varietal variability of yam cultivars
Booktitle:

Analysis of intra-varietal variability of yam cultivars

Dioscorea rotundata from Upper Guinea by flow cytometry and AFLP

Our Knowledge Publishing (2021-05-10 )

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ISBN-13:

978-620-3-68414-8

ISBN-10:
6203684147
EAN:
9786203684148
Book language:
English
Blurb/Shorttext:
The morphological characterizations carried out so far on yams from Upper Guinea have not allowed us to grasp the full importance of the genetic diversity of these yams, for which there are fears of extinction.The objective of this work is to understand what a peasant variety is by verifying its mono or polyclonal nature.The intra-varietal variability of a sample of 91 individuals belonging to the four most commercialized varieties of Dioscorea cayenensis-rotundata in Upper Guinea, 7 individuals of the wild species D. abyssinica and 3 seeds of two varieties and one wild plant, was analyzed.Chromosome number was determined by chromosome counting and DNA content was determined by flow cytometry. AFLP analyses were done with 2 pairs of primers and a tree was constructed by the NJTree method.Chromosome counting and cytometric analysis showed the existence of tetraploids (40 chromosomes and 2n = 4x) and hexaploids (60 chromosomes and 2n = 6x).The AFLP analysis revealed a more or less important heterogeneity in the four varieties at the centre of our study.
Publishing house:
Our Knowledge Publishing
Website:
https://sciencia-scripts.com
By (author) :
Fadjimba CAMARA
Number of pages:
52
Published on:
2021-05-10
Stock:
Available
Category:
Agriculture, horticulture, forestry, fishery, nutrition
Price:
39.90 €
Keywords:
AFLP; Flow cytometry; Dioscorea cayenensis-rotundata; Genetic diversity; Yam.

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