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Agro-morphological and molecular diversity in different maturity groups of Indian cauliflower (Brassica oleracea var. botrytis L.)

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Title Agro-morphological and molecular diversity in different maturity groups of Indian cauliflower (Brassica oleracea var. botrytis L.)
Not Available
 
Creator K. N. Rakshita
Shrawan Singh
Veerendra Kumar Verma
Brij Bihari Sharma
Navinder Saini
Mir Asif Iquebal
Akanksha Sharma
Shyam Sunder Dey
T. K. Behera
 
Subject agro-morphological diversity
genotypes
simple sequence repeats
polymorphic information content
genetic improvement
heterosis breeding
 
Description Not Available
The present study analysed the molecular and agro-morphological diversity in a set of 92
diverse cauliflower genotypes and two each of cabbage and broccoli. Field evaluation of the
genotypes was done in randomized block design (RBD) at two locations (i.e. IARI, New
Delhi and ICAR-RC-NEH Region, Barapani) during Rabi2019-20. Genotypes showed variation
for all the eight observed traits at both locations and, the differences in early and snowball
groups were distinct. Pusa Meghna, DC-33-8, Pusa Kartiki and CC-14 were earliest for
curd initiation. Genotypes showed higher values for curd traits at Delhi. Molecular diversity
was detected with 90 polymorphic simple sequence repeats (SSR). Number of alleles ranged
from 1 to 9 with mean value of 2.16 and the highest polymorphic information content
(PIC) value was observed for primer BoGMS0742 (0.68) with a mean value of 0.18. Cluster
analysis using agro-morphological traits substantiated classification of the genotypes for
maturity groups. However, SSR analysis revealed four clusters and with a composite pattern
of genotype distribution. STRUCTURE analysis also supported the admixture and four subpopulations.
The studyindicates for introgression of genetic fragments across the maturity
groups, thereby, potential for use in further genetic improvement and heterosis breeding.
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Date 2022-03-15T06:29:09Z
2022-03-15T06:29:09Z
2021-12-10
 
Type Research Paper
 
Identifier Rakshita KN, Singh S, Verma VK, Sharma BB, Saini N, Iquebal MA, et al. (2021) Agromorphological and molecular diversity in different maturity groups of Indian cauliflower (Brassica oleracea var. botrytis L.). PLoS ONE 16(12): e0260246.
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http://krishi.icar.gov.in/jspui/handle/123456789/70228
 
Language English
 
Relation Not Available;
 
Publisher Not Available