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http://krishi.icar.gov.in/jspui/handle/123456789/33414
Title: | Genotyping-by-sequencing based genetic mapping reveals large number of epistatic interactions for stem rot resistance in groundnut |
Other Titles: | Not Available |
Authors: | Dodia SM, Joshi B, Gangurde SS, Thirumalaisamy PP, Mishra GP, Narandra kumar D, Soni P, Rathnakumar AL, Dobaria JR, Sangh C, Chitikineni A, Chanda SV, Pandey MK, Varshney RK, Thankappan R |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR::Directorate of Groundnut Research International Crops Research Institute for the Semi-Arid Tropics Saurashtra University, Rajkot ICAR::Indian Agricultural Research Institute |
Published/ Complete Date: | 2019-04-01 |
Project Code: | Not Available |
Keywords: | Genetic mapping identified large number of epistatic interactions indicating the complex genetic architecture for stem rot disease resistance. |
Publisher: | SpringerLink |
Citation: | Dodia, S.M., Joshi, B., Gangurde, S.S. et al. Theor Appl Genet (2019) 132: 1001. https://doi.org/10.1007/s00122-018-3255-7 |
Series/Report no.: | Not Available; |
Abstract/Description: | Groundnut (Arachis hypogaea) is an important global crop commodity and serves as a major source of cooking oil, diverse confectionery preparations and livestock feed. Stem rot disease caused by Sclerotium rolfsii is the most devastating disease of groundnut and can cause up to 100% yield loss. Genomic-assisted breeding (GAB) has potential for accelerated development of stem rot resistance varieties in short period with more precision. In this context, linkage analysis and quantitative trait locus (QTL) mapping for resistance to stem rot disease was performed in a bi-parental recombinant inbred line population developed from TG37A (susceptible) × NRCG-CS85 (resistant) comprising of 270 individuals. Genotyping-by-sequencing approach was deployed to generate single nucleotide polymorphism (SNP) genotyping data leading to development of a genetic map with 585 SNP loci spanning map distance of 2430 cM. QTL analysis using multi-season phenotyping and genotyping data could not detect any major main-effect QTL but identified 44 major epistatic QTLs with phenotypic variation explained ranging from 14.32 to 67.95%. Large number interactions indicate the complexity of genetic architecture of resistance to stem rot disease. A QTL of physical map length 5.2 Mb identified on B04 comprising 170 different genes especially leucine reach repeats, zinc finger motifs and ethyleneresponsive factors, etc., was identified. The identified genomic regions and candidate genes will further validate and facilitate marker development to deploy GAB for developing stem rot disease resistance groundnut varieties. |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Research Paper |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Theoretical and Applied Genetics |
NAAS Rating: | 10.44 |
Volume No.: | 132 |
Page Number: | 1001–1016 |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | https://doi.org/10.1007/s00122-018-3255-7 |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/33414 |
Appears in Collections: | CS-DGR-Publication |
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