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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(3): 2593-2602
DOI: https://doi.org/10.20546/ijcmas.2019.803.307


Mapping of Quantitative Trait Loci (QTLs) Associated with Sugarcane Aphids Resistance in Recombinant Inbreed Population of Sorghum [Sorghum bicolor (L.) Moench]
S.P. Mehtre1*, C.T. Hash2, H.C. Sharma2, S.P. Deshpande2 and G.W. Narkhede1,2
1Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani 431 402 (MS) India
2International Crops Research Institute for the Semi-Arid Tropics (ICRISAT),Patancheru, 502324, Telangana India
*Corresponding author
Abstract:

Mapping of QTL associated with sorghum aphid resistance was undertaken in a recombinant inbred population derived from 296B (susceptible) x IS 18551 (Resistance) parents. Totally 2 QTLs spread across linkage group were detected at threshold LOD of 2.50. The alleles of IS 18551 contributed to increase aphid tolerance. QTL analysis across season revealed that QTL mapped on LG ‘J’ was a major one, explaining 20.4% of the observed phenotypic variance with a peak LOD value 9.2 and showed nonsignificant Q x E interaction. This major QTL flanked by two linked markers i.e. Xtxp 15 - Xtxp 283 and it will be targeted for marker-assisted selection in a practical breeding program aiming at increasing the level of resistance in agronomically elite backgrounds through gene pyramiding for aphid resistance.


Keywords: Sorghum, Aphid Resistance, Quantitative Trial Loci (QTL)
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How to cite this article:

Mehtre, S.P., C.T. Hash, H.C. Sharma, S.P. Deshpande and Narkhede, G.W. 2019. Mapping of Quantitative Trait Loci (QTLs) Associated with Sugarcane Aphids Resistance in Recombinant Inbreed Population of Sorghum [Sorghum bicolor (L.) Moench].Int.J.Curr.Microbiol.App.Sci. 8(3): 2593-2602. doi: https://doi.org/10.20546/ijcmas.2019.803.307