UPM Institutional Repository

Genetic divergence and heritability of 42 coloured upland rice genotypes (Oryzasativa) as revealed by microsatellites marker and agro-morphological traits


Citation

Ahmad, Faiz and Musa, Mohamed Hanafi and Hakim, Md. Abdul and Yusop, Mohd Rafii and Arolu, Ibrahim Wasiu and Abdullah, Siti Nor Akmar (2015) Genetic divergence and heritability of 42 coloured upland rice genotypes (Oryzasativa) as revealed by microsatellites marker and agro-morphological traits. PLOS ONE, 10 (9). art. no. e0138246. pp. 1-18. ISSN 1932-6203

Abstract

Coloured rice genotypes have greater nutritious value and consumer demand for these varieties is now greater than ever. The documentation of these genotypes is important for the improvement of the rice plant. In this study, 42 coloured rice genotypes were selected for determination of their genetic divergence using 25 simple sequence repeat (SSR) primers and 15 agro-morphological traits. Twenty-one out of the 25 SSR primers showed distinct, reproducible polymorphism. A dendrogram constructed using the SSR primers clustered the 42 coloured rice genotypes into 7 groups. Further, principle component analysis showed 75.28% of total variations were explained by the first - three components. All agro-morphological traits showed significant difference at the (p≤0.05) and (p≤0.01) levels. From the dendrogram constructed using the agro-morphological traits, all the genotypes were clustered into four distinct groups. Pearson's correlation coefficient showed that among the 15 agro-morphological traits, the yield contributing factor had positive correlation with the number of tillers, number of panicles, and panicle length. The heritability of the 15 traits ranged from 17.68 to 99.69%. Yield per plant and harvest index showed the highest value for both heritability and genetic advance. The information on the molecular and agro-morphological traits can be used in rice breeding programmes to improve nutritional value and produce higher yields.


Download File

[img] PDF
52452.PDF
Restricted to Repository staff only

Download (2MB)

Additional Metadata

Item Type: Article
Divisions: Faculty of Agriculture
Institute of Tropical Agriculture
DOI Number: https://doi.org/10.1371/journal.pone.0138246
Publisher: Public Library of Science
Keywords: Coloured rice genotypes; Genetic divergence; Heritability; Genotype
Depositing User: Nabilah Mustapa
Date Deposited: 06 Jun 2017 09:08
Last Modified: 06 Jun 2017 09:08
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1371/journal.pone.0138246
URI: http://psasir.upm.edu.my/id/eprint/52452
Statistic Details: View Download Statistic

Actions (login required)

View Item View Item