VerticalNews VerticalNews
VerticalNews VerticalNews VerticalNews VerticalNews     VerticalNews VerticalNews

VerticalNews
India Topics
VerticalNews
VerticalNews
VerticalNews
VerticalNews

India


Molecular Breeding - Study Data from G. Ramkumar and Co-Authors Update Knowledge of Molecular Breeding

  2011 MAR 22 - (VerticalNews.com) -- "Rice blast is one of the most devastating diseases affecting the rice crop throughout the world. In molecular breeding for host plant resistance, functional markers are very useful for enhancing the precision and accuracy in marker-assisted selection (MAS) of target gene(s) with minimum effort, time and cost," scientists writing in the journal Molecular Breeding report.

  "Pi54 (which was earlier known as Pik (h) ) is one of the major blast resistance genes and has been observed to show resistance against many isolates of the blast pathogen in India. The gene has been cloned through map-based strategy and encodes a nucleotide-binding site-leucine-rich repeat (NBS-LRR) domain-containing protein. In the present study, we carried out allele mining for this gene and identified a 144-bp insertion/deletion (InDel) polymorphism in the exonic region of the gene. A PCR-based co-dominant molecular marker targeting this InDel, named Pi54 MAS, was developed. Pi54 MAS was observed to perfectly co-segregate with blast resistance in a mapping population with no recombinants. Validation of this marker in 105 genotypes which are either susceptible or resistant to rice blast disease showed that the marker is polymorphic in most of the resistant-susceptible genotype combinations and is more accurate than the earlier reported markers for Pi54," wrote G. Ramkumar and colleagues ...read more


Molecular Breeding - Studies in the area of molecular breeding reported from R.M. Patil and co-researchers

  2008 MAY 12 - (VerticalNews.com) -- According to recent research from Pune, India, "Yellow pigment content in durum wheat (Triticum turgidum L. ssp. durum) is an important criterion for both pasta bright yellow color and human health because of antioxidant properties of carotenoids involved in this pigmentation. In the present study, QTLs for yellow pigment content in durum wheat were mapped in a population of 140 RILs developed from a intraspecific cross between a released variety (PDW 233) and a landrace (Bhalegaon 4). ...read more


Molecular Breeding - Studies in the area of molecular breeding reported from R.M. Patil and co-researchers

  2008 MAY 12 - (VerticalNews.com) -- According to recent research from Pune, India, "Yellow pigment content in durum wheat (Triticum turgidum L. ssp. durum) is an important criterion for both pasta bright yellow color and human health because of antioxidant properties of carotenoids involved in this pigmentation. In the present study, QTLs for yellow pigment content in durum wheat were mapped in a population of 140 RILs developed from a intraspecific cross between a released variety (PDW 233) and a landrace (Bhalegaon 4). ...read more


View more articles on Molecular Breeding.
VerticalNews

Subscribe to VerticalNews India

Buy Now
VerticalNews



VerticalNews
SSL VerticalNews