TITLE:
Evaluation of Genetic Divergence in Various Potato Genotypes Grown in Bangladesh through Different Traits Assessment
AUTHORS:
Md. Mukhtar Hossain, Md. Abdul Kaium, Md. Al Amin, Tabaraka Binte Ali, Nusrat Jahan, Md Nasim Uddin
KEYWORDS:
Genetic Divergence, Potato Genotypes, Different Traits, Cluster Analysis, Principal Component Analysis
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.14 No.11,
November
13,
2023
ABSTRACT: The goal of the study was to quantify the genetic diversity of different
potato varieties. Five groups were named to
classify the 25 genres of potatoes as: Cluster I (Lalpakri, Diamond),
Cluster II (Hagrai, Green Mountain, G.M.O., Elvera),
Cluster III (Atlantic, Shepody, Raja, Fundy, Multa, Granulla, Shibilati, Japanese Red), Cluster IV (Atlas, Brondy,
Yucon Gold, Monona, Petrones, Cheroki), and Cluster V (Calwhite, Prelude,
Allblue, Russet, Burbank, TPS-67). The highest and lowest genotypes are found in Clusters III and I, respectively. The two groups’ maximum
inter-cluster distance (the cluster’s
distance between them) demonstrates the enormous diversity between Clusters
II & III. Cluster III had the greatest intra-cluster distance (distance
within a set), whereas Cluster V had the smallest. In most cases, the distance between gaps was more significant than
the distance within the holes, showing greater
genetic diversity between different groups’ genotypes. The highest, second highest, and third highest eigenvalues, accompanying the positive canonical values for Vectors I and II of three
characteristics: average tuber weight in each plant, the tubers number
in each plant, and the eyes number in each
tuber, showed the most outstanding contribution to the complete difference between genotypes. Of the nine features, the
smaller leaves number in each plant, the shorter plant height, the more
minor genotypes, the fewer eyes per tube
generated from Cluster I, the maximum height of the plants, the high-quality tubers in each plant, the tubers
number in each plant, the fresh weight in each plant, and the leaf
number in each plant from Cluster II could be chosen in the role of parents in
this program for hybridization. Given the size
of the genetic distance, the various characteristics that contribute to the overall difference, and the average population size, Hagrai, Green Mountain, O.M.G., Elvera Cluster II and Cluster I, Lalpakri,
and Diamond genotypes can be regarded
as parents of hybridization programs in the future. Thus, producers can
get guidance to enhance genetic diversity by selecting materials from different relatives and reducing their
vulnerability to diseases and climate change.