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Effect of overexpression of Arabidopsis thaliana SHB1 and KLUH genes on seed weight and yield contributing traits in Indian mustard (Brassica juncea L.(Czern.))

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Title Effect of overexpression of Arabidopsis thaliana SHB1 and KLUH genes on seed weight and yield contributing traits in Indian mustard (Brassica juncea L.(Czern.))
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Creator Siddanna Savadi, Vasupalli Naresh, Vajinder Kumar, Seema Dargan, Navin Chandra Gupta, Rohit Chamola, Shripad Ramachandra Bhat
 
Subject Indian mustard, seed weight, SHB1, KLUH, transformation
 
Description Not Available
Seed size is a highly heritable trait in mustard and increasing seed size could improve crop productivity. Here we report the effect of overexpression of twoArabidopsisgenes SHB1 and KLUH on seed weight and other yield contributing traits in Brassica juncea. KLUH gene was expressed under its own promoter, whereas the constitutive HPL promoter drove SHB1. Transgenic status was confirmed through PCR, RT-PCR and Southern analyses. The three SHB1 events contained single copy of transgene, whereas 12 KLUH events carried 1-4 copies of transgenes. All transgenics were fertile and comparable to non-transgenic counterpart for most of the agronomic traits in both T0 and T1 generations. Seed size and seed weight inSHB1transgenics were 30-40% higher than the control, whereas one KLUH event showed significant increase in seed weight. Constitutive overexpression of SHB1 in B. juncea had undesirable pleiotropic effects that were comparable to the Arabidopsis lines overexpressing IKU2.
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Date 2019-12-03T05:26:45Z
2019-12-03T05:26:45Z
2015-08-01
 
Type Article
 
Identifier 8
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http://krishi.icar.gov.in/jspui/handle/123456789/26473
 
Language English
 
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Publisher Indian Society of Genetics & Plant Breeding, F2, First Floor, NASC Complex, PB#11312, IARI, New Delhi 110 012able