May 5th 2019 (India Science Wire): After three years of rigorous research,
a team of scientists from International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) here and 21
research institutions across the world have successfully completed the
sequencing of 429 chickpea lines from 45 countries.
The new development assumes importance as chickpea is an important
crop with high nutrient value and there is a need to generate new varieties with
better traits including heat, drought, pests and disease resistance, besides
higher yield and productivity particularly in the context of the growing global
population and threats posed by climate change.
The genome-wide association studies have identified several
candidate genes for 13 agronomic traits. For example, “we could identify genes,
which can help the crop tolerate temperatures up to 38 degree Celsius and
provide higher productivity,” said project leader Dr Rajeev Varshney.
The study lays foundation for large-scale characterization of the germplasm, population genetics and crop breeding of chickpea and helps understand domestication and post-domestication divergence of chickpea. “The new knowledge from the sequencing will enable breeders to enhance the use of diverse germplasm and candidate genes in developing improved climate-change ready varieties that will contribute significantly to increase in productivity and sustainability of agricultural development in developing countries,” said ICRISAT Director General, Dr. Peter Carberry.
Among the research institutions that participated in the study are Indian Agricultural Research Institute, Indian Institute of Pulses Research, Osmania University and University of Agricultural Sciences, Bengaluru. BGI Research, a Chinese a genome sequencing company was also involved in the project. The study results have been published in journal Nature Genetics.