Open AccessAssessment of root phenotypes in mungbean mini-core collection (MMC) from the World Vegetable Center (AVRDC) Taiwan
Author(s) -
Muraleedhar S. Aski,
Neha Rai,
V. R. Reddy,
. Gayacharan,
Harsh Kumar Dikshit,
Gyan P. Mishra,
Dharmendra Singh,
Arun Kumar,
Renu Pandey,
Madan Pal Singh,
Aditya Pratap,
Ramakrishnan M. Nair,
Roland Schafleitner
Publication year - 2021
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0247810
Subject(s) - phenotype , biology , center (category theory) , microbiology and biotechnology , genetics , gene , chemistry , crystallography
Mungbean ( Vigna radiata L.) is an important food grain legume, but its production capacity is threatened by global warming, which can intensify plant stress and limit future production. Identifying new variation of key root traits in mungbean will provide the basis for breeding lines with effective root characteristics for improved water uptake to mitigate heat and drought stress. The AVRDC mungbean mini core collection consisting of 296 genotypes was screened under modified semi-hydroponic screening conditions to determine the variation for fourteen root-related traits. The AVRDC mungbean mini core collection displayed wide variations for the primary root length, total surface area, and total root length, and based on agglomerative hierarchical clustering eight homogeneous groups displaying different root traits could be identified. Germplasm with potentially favorable root traits has been identified for further studies to identify the donor genotypes for breeding cultivars with enhanced adaptation to water-deficit stress and other stress conditions.