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<p>A candidate gene-based association study of introgressed pod shatter resistance in <em>Brassica napus</em><em></em></p>

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Title Statement <p>A candidate gene-based association study of introgressed pod shatter resistance in <em>Brassica napus</em><em></em></p>
 
Added Entry - Uncontrolled Name Dhaliwal, Inderpreet ; Punjab Agricultural University
Banga, S ; Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana 141 004, Punjab, India
Kumar, N ; Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana 141 004, Punjab, India
Salisbury, P ; University of Melbourne, Melbourne, Australia
Banga, S S; Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana 141 004, Punjab, India
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Uncontrolled Index Term Association mapping, Brassica napus, Candidate gene, Introgression, Pod shatter resistance
 
Summary, etc. <p>Yield losses at maturity due to unsynchronized pod shattering remain a major rapeseed  breeding challenge. Variation for shatter resistance  in the germplasm collections is  inadequate for breeding manipulations. We have recently transferred resistance to pod shattering from <em>Brassica carinata</em> to<em> Brassica napus</em>. Introgression lines (ILs) were phenotyped for shatter resistance using the pendulum machine. Introgressive breeding was successful in enhancing rupture energy in the ILs, which varied from 1.8 to 7.2 mJ for E1 and 2.7 to 6.5 mJ for E2 while the corresponding values for natural <em>B. napus</em> ranged from 2.2 - 3.5 mJ (E1) and 2.2 - 4.3 mJ (E2) respectively. <em>B. carinata</em> had an average rupture energy of 6.3 mJ (pooled over environments).  On the basis of data averaged over two environments, I2 (6.3 mJ), I3 (5.2 mJ), I8 (5.6 mJ), I22 (5.1 mJ), I32 (5.2 mJ) and I41 (5.2 mJ) appeared very promising as germplasm resources for future breeding. Significant marker trait association between candidate gene NAC and rupture energy explained 19% of variation for the trait. NDEH 3 also appeared to be associated with rupture energy under E1. These polymorphisms represent promising candidates for the development of molecular markers for marker-assisted deployment of introgressed shatter resistance.</p>
 
Publication, Distribution, Etc. Indian Journal of Traditional Knowledge (IJTK)
2021-03-03 16:09:58
 
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http://op.niscair.res.in/index.php/IJTK/article/view/30783
 
Data Source Entry Indian Journal of Traditional Knowledge (IJTK); ##issue.vol## 20, ##issue.no## 1 (2021): Indian Journal of Traditional Knowledge
 
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Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJTK/article/download/30783/465494545
http://op.niscair.res.in/index.php/IJTK/article/download/30783/465494547
http://op.niscair.res.in/index.php/IJTK/article/download/30783/465494548
http://op.niscair.res.in/index.php/IJTK/article/download/30783/465494549