Abstract
Rice is a staple food for the people of Asia that supplies more than 50% of the food energy globally. It is widely accepted that the crop domestication process has left behind substantial useful genetic diversity in their wild progenitor species that has huge potential for developing crop varieties with enhanced resistance to an array of biotic and abiotic stresses. In this context, Oryza rufipogon, Oryza nivara and their intermediate types wild rice germplasm/s collected from diverse agro-climatic regions would provide a rich repository of genes and alleles that could be utilized for rice improvement using genomics-assisted breeding. Here we present a database of detailed information on 614 such diverse wild rice accessions collected from different agro-climatic zones of India, including 46 different morphological descriptors, complete passport data and DNA fingerprints. The information has been stored in a web-based database entitled ‘Indian Wild Rice (IWR) Database’. The information provided in the IWR Database will be useful for the rice geneticists and breeders for improvement of rice cultivars for yield, quality and resilience to climate change.Database URL: http://nksingh.nationalprof.in: 8080/iwrdb/index.jsp
Highlights
Rice (Oryza sativa L) is one of the most important primary food crops of the world in terms of both volume and value and is single largest source of energy for more than half of the world’s population
The Indian Wild Rice (IWR) database is a primary source of information about large number of wild rice accessions collected from different agro-climatic zones of India
These wild rice accessions together with information on their salinity and drought tolerance phenotype will help rice geneticists and breeders to use these in genetic crossing programs to find and utilize agronomically useful genes
Summary
Rice (Oryza sativa L) is one of the most important primary food crops of the world in terms of both volume and value and is single largest source of energy for more than half of the world’s population. The ‘Accession’ tab allows the user to choose the accession number to see information on 46 morphological descriptors sub-divided into five groups, namely Plant morphology, Culm information, Leaf information, Flower information and Seed information (Table 2, Figure 4), passport data and collection site with relevant photographs and videos. This tab contains specific useful trait information on drought, salt tolerance and flood tolerance. Out of this 418 accessions were characterized in much detail and the remaining has only basic passport information This database shows ORSC accessions classified based on their origin from diverse agro-climatic zones, morphological classification in to O. nivara, O. rufipogon and intermediate O. sativa f.
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