Identification and genetic improvement of modern rice varieties needed for the understanding of nutrient efficiency and increasing of grain yield potential has played a major role in crop breeding programe. (or) Identification and genetic improvement of modern rice varieties needed for the understanding of nutrient efficiency and increasing of grain yield potential has taken a primary objective to plant breeders and biotechnologist. The Periodic appraisal of genetic improvement of rice, have been contributed to the loss of various plant genes associated with efficient nutrient acquisition strategies and adaptation to soil-related stresses Phosphorus is a non-renewable recourse and inevitable element of metabolic functions in plants. Improvement
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By inclusive survey from literature and public databases, to date 57 Phosphorus sensitivity QTLs, 2 Phosphorus uptake and 4 relative phosphorus distribution between shoot and root QTLs associated under low phosphorus condition were identified. Further, the discovered QTLs were mapped in different genetic background of the diverse rice cultivars. These major QTLs and genes have been cloned, validated and transferred into elite rice cultivars to make them P efficient and amenable for low P condition. In addition, it is necessary to explore the regulation and molecular mechanism of traits associating under low phosphorus situation. However, valuable genes and alleles were most prominent in rice from traditional land races and wild rice. Combining realistic morpho-physiological traits associated favorable alleles that have the potential role in development of tolerant rice cultivars under low phosphorus via use of functional marker assisted selection would be an approach that is more …show more content…
Particularly in India, phosphorus deficiency is wide-spread in nearly 85% of the soils and in-sufficient plant-available soil phosphorus can be a major constraint for rice production (Krishnamurthy et al. 2014). Therefore, rice grain yield has to be increased through proper agronomic management practices and developing novel high yielding rice varieties by employing marker-assisted selection (MAS) in breeding program to achieve their potential grain yield under low P condition is an important criterion for the burgeoning
By inclusive survey from literature and public databases, to date 57 Phosphorus sensitivity QTLs, 2 Phosphorus uptake and 4 relative phosphorus distribution between shoot and root QTLs associated under low phosphorus condition were identified. Further, the discovered QTLs were mapped in different genetic background of the diverse rice cultivars. These major QTLs and genes have been cloned, validated and transferred into elite rice cultivars to make them P efficient and amenable for low P condition. In addition, it is necessary to explore the regulation and molecular mechanism of traits associating under low phosphorus situation. However, valuable genes and alleles were most prominent in rice from traditional land races and wild rice. Combining realistic morpho-physiological traits associated favorable alleles that have the potential role in development of tolerant rice cultivars under low phosphorus via use of functional marker assisted selection would be an approach that is more …show more content…
Particularly in India, phosphorus deficiency is wide-spread in nearly 85% of the soils and in-sufficient plant-available soil phosphorus can be a major constraint for rice production (Krishnamurthy et al. 2014). Therefore, rice grain yield has to be increased through proper agronomic management practices and developing novel high yielding rice varieties by employing marker-assisted selection (MAS) in breeding program to achieve their potential grain yield under low P condition is an important criterion for the burgeoning