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Morphological and molecular screening of rice germplasm lines for low soil P tolerance

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Title Morphological and molecular screening of rice germplasm lines for low soil P tolerance
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Creator Ravindra Ramrao Kale, M. Anila, H. K. Mahadeva Swamy, V. P. Bhadana, Ch. V. Durga Rani, P. Senguttuvel, D. Subrahmanyam, S. K. Hajira, G. Rekha, M. Ayyappadass, B. Laxmiprasanna, E. Punniakotti, M. B. V. N. Kousik, Swapnil Kulkarni, T. Dilip, Pragya Sinha, G. Harika, K. Pranathi, K. Chaitra, M. S. Anantha., P. Brajendra, L. V. Subbarao, S. M. Balachandran, S. K. Mangrauhuia & Raman Meenakshi Sundaram
 
Subject Low soil Phosphorus tolerance Pup1 IC216831 IC216903
 
Description Not Available
Phosphorus (P) is an essential macronutrient to all crops including rice and it plays a key role in various plant activities and development. Low availability of P in the soils negatively, influences rice crop growth and causes significant yield loss. In the present study, we characterized a set of 56 germplasm lines for their tolerance to low soil P by screening them at low soil P and optimum soil P levels along with low soil P tolerant and sensitive check varieties. These lines were genotyped for the presence/absence of tolerant allele with respect to the major low soil P tolerance QTL, Pup1, using a set of locus specific PCR-based markers, viz., K46-1, K46-2, K52 and K46CG-1. High genetic variability was observed for various traits associated with low soil P tolerance. The yield parameters from normal and low soil P conditions were used to calculate stress tolerance indices and classify the genotypes according to their tolerance level. Out of the total germplasm lines screened, 15 lines were found to be tolerant to low soil P condition based on the yield reduction in comparison to the tolerant check, but most of them harbored the complete or partial Pup1 locus. Interestingly, two tolerant germplasm lines, IC216831 and IC216903 were observed to be completely devoid of Pup1 and hence they can be explored for new loci underlying low soil P tolerance.
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Date 2022-04-07T06:28:34Z
2022-04-07T06:28:34Z
2020-10-20
 
Type Research Paper
 
Identifier 25. Kale, R.R., Anila, M., MahadevaSwamy, H.K., Bhadana, V.P., Durga Rani, C.V., Senguttuvel, P., Subrahmanyam, D., Hajira, S.K., Rekha, G., Ayyappadass, M. and Laxmiprasanna, B., 2021. Morphological and molecular screening of rice germplasm lines for low soil P tolerance. Journal of Plant Biochemistry and Biotechnology, 30(2), pp.275-286.
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http://krishi.icar.gov.in/jspui/handle/123456789/71275
 
Language English
 
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