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Molecular characterization of egg plant and related species: stability analysis for yield and reaction to bacterial wilt under humid subtropics of North Eastern India

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Title Molecular characterization of egg plant and related species: stability analysis for yield and reaction to bacterial wilt under humid subtropics of North Eastern India
Not Available
 
Creator Verma Veerendra Kumar , Pandey Avinash, Baiswar Pankaj and Jha Anjani Kumar
 
Subject Eggplant; genetic diversity; SSR markers; diseases incidence; stability
 
Description Not Available
Eggplant (Solanum melongena L.) is an important solanaceous vegetable crop grown worldwide
over tropics and subtropics. Bacterial wilt (caused by Ralstonia solanacearum) is one of
the most serious diseases of the crop, especially in the humid tropics. The present investigation
was carried out using 26 accessions of eggplant including wild relatives aiming to
identify stable genotypes of eggplant with tolerant to bacterial wilt. The accessions were
characterised using 40 simple sequence repeat (SSR) markers. Thirty-four markers were found
polymorphic and produced 136 alleles with an average of four alleles per marker. All the
markers have shown amplification across accessions of eggplant-related species. Markers EES-
050, EES-065, and EES-066 were highly informative. Among the species, scarlet eggplant
(Solanum aethiopicum var.gilo) was found to be the closest to S.melongena. Markers, EES-
031 and EES-051, were specific to the accessions with tolerance to bacterial wilt. Based on the
three-year evaluations, the disease incidence (DI) ranged from 1.27% (S.torvum) to 72.85% (S.
melongena var. Kasi Taru). The AMMI and GGE biplot analyses have shown the significant
contribution of genotype variation over the environment and interaction. The local eggplant
accessions (Bhola Nath, RCMB-10, Singh Nath and RCMBL-1) were found highly stable for yield
with lowest wilt incidences when compared to other Indian accessions. The results suggested
the incorporation of local accessions/landraces into the eggplant breeding programmes
aiming to develop stable cultivars with improved yield and resistant to bacterial wilt.
Not Available
 
Date 2021-08-05T08:12:44Z
2021-08-05T08:12:44Z
2019-06-24
 
Type Research Paper
 
Identifier Not Available
ISSN: 1462-0316 (Print) 2380-4084 (Online)
http://krishi.icar.gov.in/jspui/handle/123456789/53255
 
Language English
 
Relation Not Available;
 
Publisher Not Available