Publications of NIPGR Scientists

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    The ricebean genome provides insight into Vigna genome evolution and facilitates genetic enhancement
    (John Wiley & Sons, 2023) Francis, Aleena; Singh, Nagendra Pratap; Singh, Mohar; Sharma, Paras; Gayacharan; Kumar, Durgesh; Basu, Udita; Bajaj, Deepak; Varshney, Nidhi; Joshi, Dinesh Chandra; Semwal, Dinesh Prasad; Tyagi, Vandana; Wankhede, Dhammaprakash; Bharadwaj, Rakesh; Singh, Amit Kumar; Parida, Swarup K.; Chattopadhyay, Debasis
    Ricebean [Vigna umbellata (Thunb.) Ohwi and Ohashi] (2n = 2x = 22) is a warm-season dietary pulse legume crop and was originated in the Indo-China region. It is known to provide food security to the small and marginal farmers of South and South-East Asia. Ricebean is well known for its high nutritional quality and resistance to bacterial leaf spot, Mungbean yellow mosaic virus and bruchid, which are devastating for the other Vigna family crops (Dhaliwal et al., 2022). We report a reference grade de novo genome assembly, which is anchored to the genetic linkage groups and covered almost the whole estimated genome length of ricebean and so far, the largest among the sequenced Vigna species.
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    Designing a mini-core collection effectively representing 3004 diverse rice accessions
    (Elsevier B.V., 2020) Kumar, Angad; Kumar, Shivendra; Singh, Kajol B.M.; Prasad, Manoj; Thakur, Jitendra K.
    Genetic diversity provides the foundation for plant breeding and genetic research. Over 3000 rice genomes were recently sequenced as part of the 3K Rice Genome (3KRG) Project. We added four additional Indian rice accessions to create a panel of 3004 accessions. However, such a large collection of germplasm is difficult to preserve and evaluate. The construction of core and mini-core collections is an efficient method for the management of genetic resources. In this study, we developed a mini-core comprising 520 accessions that captured most of the SNPs and represented all of the phenotypes and geographic regions from the original panel. The mini-core was validated using different statistical analyses and contained representatives from all major rice groups, including japonica, indica, aus/boro, and aromatic/basmati. Genomewide association analyses of the mini-core panel efficiently reproduced the marker–trait associations identified in the original panel. Haplotype analysis validated the utility of the mini-core panel. In the current era with many ongoing large-scale sequencing projects, such a strategy for mini-core design should be useful in many crops. The rice mini-core collection developed in this study would be valuable for agronomic trait evaluation and useful for rice improvement via marker-assisted molecular breeding.