Journal of Genetics

, Volume 93, Issue 3, pp 683–688 | Cite as

Phosphate acquisition efficiency and phosphate starvation tolerance locus (PSTOL1) in rice



Phosphate availability is a major factor limiting tillering, grain filling vis-à-vis productivity of rice. Rice is often cultivated in soil like red and lateritic or acid, with low soluble phosphate content. To identify the best genotype suitable for these types of soils, P acquisition efficiency was estimated from 108 genotypes. Gobindabhog, Tulaipanji, Radhunipagal and Raghusail accumulated almost equal amounts of phosphate even when they were grown on P-sufficient soil. Here, we have reported the presence as well as the expression of a previously characterized rice gene, phosphate starvation tolerance locus (PSTOL1) in a set of selected genotypes. Two of four genotypes did not show any detectable expression but carried the gene. One mega cultivar, Swarna did not possess this gene but showed high P-deficiency tolerance ability. Increase of root biomass, not length, in P-limiting situations might be considered as one of the selecting criteria at the seedling stage. Neither the presence of PSTOL1 gene nor its closely-linked SSR RM1261, showed any association with P-deficiency tolerance among the 108 genotypes. Not only this, but the presence of PSTOL1 in recombinant inbred line (RIL) developed from a cross between Gobindabhog and Satabdi, also did not show any linkage with P-deficiency tolerance ability. Thus, before considering PSTOL1 gene in MAB, its expression and role in P-deficiency tolerance in the donor parent must be ascertained.


rice P-deficiency tolerance PSTOL1 Gobindabhog. 



The authors sincerely acknowledge the Department of Biotechnology, Government of India for funding vide BT/20/NE/TBP/2010 dated 20.10.11. The authors also thank Soumya Bhattacharyya for his critical review of English.

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Copyright information

© Indian Academy of Sciences 2014

Authors and Affiliations

    • 1
    • 1
    • 1
    • 2
    • 1
    • 3
    • 2
    • 1
    Email author
  1. 1.Department of GeneticsBidhan Chandra Krishi ViswavidyalayaMohanpurIndia
  2. 2.Department of BiotechnologyBidhan Chandra Krishi ViswavidyalayaMohanpurIndia
  3. 3.Department of Genetics and Plant BreedingCollege of AgricultureLembucherraIndia

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