Indian Society of Genetics & Plant Breeding

Characterizing the diversity of grain phytic acid content in Indian rice landraces by multivariate genetic analyses

Published on

Phytic acid (PA) acts as chelator of cationic mineral
elements iron (Fe) and zinc (Zn) and obstructs their
absorption in the human gut. We have evaluated a set of
162 traditional rice landraces for phytic acid phosphorus
(PA-P), inorganic phosphorus (Pi) and total phosphorus
(TP). Wide variability was observed for PA-P, Pi and TP
ranging from 1.12 to 3 mg/g, 0.004 to 0.16 mg/g and 1.17 to
3.04 mg/g respectively. The mineral micronutrients, Fe and
Zn were not in correlation with PA-P, Pi and TP implicating
the possibility of their independent improvement while PAP showed a significant positive correlation with TP and
significant negative correlation with Pi. Principal component
analysis (PCA) identified two principal components PC1
and PC2, explaining 50.6 % and 32.1 % of the total variation,
respectively. Cluster analysis grouped the accessions into
four clusters. The study has also led to the identification of
promising donors such as P1490 and Gowri with low PA
content to be utilized in rice biofortification programmes

Keywords: Phytic acid, rice, multivariate analysis, PCA, cluster analysis


Year: 2021
Volume: 81
Issue: 1
Article DOI: 10.31742/IJGPB.81.1.3
Print ISSN: 0019-5200
Online ISSN: 0975-6906



Download PDF