Publications by authors named "Balachiranjeevi Ch"
Rice Tungro disease poses a threat to rice production in Asia. Marker assisted backcross breeding is the most feasible approach to address the tungro disease. We targeted to introgress tungro resistance locus tsv1 from Matatag 1 into a popular but tungro susceptible rice variety of Bangladesh, BRRI dhan71.
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- Improved-Samba-Mahsuri (ISM) rice variety is sensitive to low soil phosphorus, prompting the use of marker-assisted backcross breeding to enhance its tolerance by incorporating the Pup1 gene from Swarna.
- A new marker specific to Pup1 was developed for selecting plants, while additional markers were used to maintain bacterial blight resistance traits during breeding.
- Twelve plants exhibiting both low phosphorus tolerance and strong resistance to bacterial blight were identified, and one promising line showed consistent performance in trials across various locations in India under different soil phosphorus conditions.
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- Genetic analysis of resistance to the brown planthopper was conducted using a mapping population from a resistant rice variety crossed with a susceptible line, revealing a specific genetic locus linked to BPH resistance.
- This research identified 71 candidate genes within the locus, including a gene related to biotic stress resistance, and created introgression lines with high genome recovery that can aid in breeding programs for BPH resistance.
The production and productivity of rice (Oryza sativa L.) are primarily influenced by the application of the critical nutrients nitrogen (N), phosphorus (P), and potassium (K). However, excessive application of these fertilizers is detrimental to the environment and increases the cost of production.
View Article and Find Full Text PDFThis study was carried out to improve the RPHR-1005, a stable restorer line of the popular medium slender grain type rice hybrid, DRRH-3 for bacterial blight (BB) and blast resistance through marker-assisted backcross breeding (MABB). Two major BB resistance genes, Xa21 and Xa33 and a major blast resistance gene, Pi2 were transferred to RPHR-1005 as two individual crosses. Foreground selection for Xa21, Xa33, Pi2, Rf3 and Rf4 was done by using gene-specific functional markers, while 59 simple sequence repeat (SSR) markers polymorphic between the donors and recipient parents were used to select the best plant possessing target resistance genes at each backcross generation.
View Article and Find Full Text PDFRPHR-1005, the stable restorer line of the popular medium slender (MS) grain type rice hybrid, DRRH-3 was improved in this study for resistance against bacterial blight (BB) and blast diseases through marker-assisted backcross breeding (MABB). In this study, four major resistance genes (i.e.
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