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Genome-wide Analysis in Wild and Cultivated Oryza Species Reveals Abundance of NBS Genes in Progenitors of Cultivated Rice.

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Title Genome-wide Analysis in Wild and Cultivated Oryza Species Reveals Abundance of NBS Genes in Progenitors of Cultivated Rice.
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Creator Rawal HC, Amitha Mithra SV, Arora K, Kumar V, Goel N, Mishra DC, Chaturvedi KK, Rai A, Devi SV, Sharma TR and Solanke AU
 
Subject NBS genes, NB-ARC domain, NBS-LRR, Genome-wide analysis, Disease resistance, Evolution
 
Description Not Available
NBS-encoding genes play a critical role in the plant defense system. Wild relatives of crop plants are rich reservoirs of plant defense genes. Here, we performed a stringent genome-wide identification of NBS-encoding genes in three cultivated and eight wild Oryza species, representing three different genomes (AA, BB, and FF) from four continents. A total of 2688 NBS-encoding genes were identified from 11 Oryza genomes. All the three progenitor species of cultivated rice, namely O. barthii, O. rufipogon, and O. nivara, were the richest reservoir of NBS-encoding genes (214, 313, and 307 respectively). Interestingly, the two Asian cultivated species showed a contrasting pattern in the number of NBS-encoding genes. While indica subspecies maintained nearly equal number of NBS genes as its progenitor (309 and 313), the japonica subspecies had retained only two third in the course of evolution (213 and 307). Other major sources for NBS-encoding genes could be (i) O. longistaminata since it had the highest proportion of NBS-encoding genes and (ii) O. glumaepatula as it clustered distinctly away from the rest of the AA genome species. The present study thus revealed that NBS-encoding genes can be exploited from the primary gene pool for disease resistance breeding in rice.
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Date 2021-07-29T04:16:23Z
2021-07-29T04:16:23Z
2018-05-12
 
Type Research Paper
 
Identifier Rawal HC, Amitha Mithra SV, Arora K, Kumar V, Goel N, Mishra DC, Chaturvedi KK, Rai A, Devi SV, Sharma TR and Solanke AU (2018) Genome-wide Analysis in Wild and Cultivated Oryza Species Reveals Abundance of NBS Genes in Progenitors of Cultivated Rice. Plant Molecular Biology Reporter. (DOI: 10.1007/s11105-018-1086-y)
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http://krishi.icar.gov.in/jspui/handle/123456789/50895
 
Language English
 
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