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Molecular Breeding for Incorporation of Submergence Tolerance and Durable Bacterial Blight Resistance into the Popular Rice Variety ‘Ranidhan’

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Title Molecular Breeding for Incorporation of Submergence Tolerance and Durable Bacterial Blight Resistance into the Popular Rice Variety ‘Ranidhan’
Not Available
 
Creator Shibani Mohapatra
Saumya Ranjan Barik
Prasanta K. Dash
Devidutta Lenka
Kartika Chandra Pradhan
Reshmi Raj K. R
Shakti Prakash Mohanty
Mihir Ranjan Mohanty
Ambika Sahoo
Binod Kumar Jena
Alok Kumar Panda
Debabrata Panigrahi
Sushanta Kumar Dash
Jitendriya Meher
Chitta Ranjan Sahoo
Arup Kumar Mukherjee
Lipi Das
Lambodar Behera
Sharat Kumar Pradhan
 
Subject bacterial blight resistance
durable resistance
gene pyramiding
gene stacking
submergence tolerance
 
Description Not Available
Ranidhan is a popular late-maturing rice variety of Odisha state, India. The farmers of the
state suffer heavy loss in years with flash floods as the variety is sensitive to submergence. Bacterial
blight (BB) disease is a major yield-limiting factor, and the variety is susceptible to the disease. BB
resistance genesXa21, xa13, and xa5, along with the Sub1 QTL, for submergence stress tolerance
were transferred into the variety using marker-assisted backcross breeding approach. Foreground
selection using direct and closely linked markers detected the progenies carrying all four target
genes in the BC1F1, BC2F1, and BC3F1 generations, and the positive progenies carrying these genes
with maximum similarity to the recipient parent, Ranidhan, were backcrossed into each segregating
generation. Foreground selection in the BC1F1 generation progenies detected all target genes in 11
progenies. The progeny carrying all target genes and similar to the recipient parent in terms of
phenotype was backcrossed, and a total of 321 BC2F1 seeds were produced. Ten progenies carried
all target genes/QTL in the BC2F1 generation. Screening of the BC3F1 progenies using markers
detected 12 plants carrying the target genes. A total of 1270 BC3F2 seeds were obtained from the best
BC3F1 progeny. Foreground selection in the BC3F2 progenies detected four plants carrying the target
genes in the homozygous condition. The bioassay of the pyramided lines conferred very high levels
of resistance to the predominant isolates of bacterial blight pathogen. These BB pyramided lines
were submergence-tolerant and similar to Ranidhan in 13 agro-morphologic and grain quality
traits; hence, they are likely to be adopted by farmers.
Not Available
 
Date 2023-04-05T09:26:31Z
2023-04-05T09:26:31Z
2023-01-18
 
Type Research Paper
 
Identifier https://doi.org/10.3390/ biom13020198
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/76699
 
Language English
 
Relation Not Available;
 
Publisher MDPI