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Genome editing for banded leaf and sheath blight resistance in Indian maize genotypes

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Title Genome editing for banded leaf and sheath blight resistance in Indian maize genotypes
Not Available
 
Creator Krishan Kumar
Bhupender Kumar
Abhishek Kumar Jha
Neha
Prahlad Piyal
 
Subject BLSB
Tropical maize
CRISPR-Cas9
Fbox protein
ZmFBL41
 
Description Not Available
Maize is the third most significant grain crop
in India and is used as food, feed, and industrial raw
material. Banded Leaf and Sheath Blight (BLSB) disease
of maize caused by the necrotrophic fungal pathogen
Rhizoctonia solani causes significant yield losses
frequently between 10-40 per cent. To date, a few maize
genotypes having mild/partial resistance to this destructive
fungus have been reported. Additionally, a small number
of quantitative trait loci (QTLs) for resistance to BLSB
have been identified globally; yet, none of these QTLs have
been found to confer strong resistance to BLSB. Therefore
nonavailability of completely field-resistant or immune
maize genotypes is of great concern and poses a major
challenge for plant breeders. To manage this disease, a
variety of agrochemicals, agronomic practices, and
integrated pest management strategies are being used;
nonetheless, sufficient and sustainable control could not
be achieved. Further, there are negative ecological effects
from the widespread usage of fungicides. Moreover, the
management of BLSB is highly ineffective because of the
broad host range of R. solani, the great genetic
heterogeneity of the pathogen, the long survival ability in
the form of sclerotia, and the lack of stable resistant maize
cultivars against this disease. This implies that novel
strategies should be used to develop BLSB-resistant Indian
maize genotypes. In view of the above facts, developing
a transgene-free genome-edited Indian maize genotype
resistant to BLSB via the CRISPR/Cas- mediated targeted
mutagenesis of major regulator gene i.e. the F-box proteinencoding
gene, ZmFBL41 would be a viable approach. It
is anticipated that precise editing of this key gene would
potentially address a major factor causing yield penalty in
Indian maize i.e. BLSB disease.
Not Available
 
Date 2024-03-05T10:13:03Z
2024-03-05T10:13:03Z
2023-10-01
 
Type Review Paper
 
Identifier Kumar, K., Kumar, B., Jha, A.K., Neha, Piyal, P. (2023) Genome editing for banded leaf and sheath blight resistance in Indian maize Genotypes. Maize Journal 12(2): 61-65.
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/81563
 
Language English
 
Relation Not Available;
 
Publisher Maize Technologists Association of India