Genetic improvement of grass pea for low neurotoxin (ODAP) content

Kumar, Shiv and Bejiga, G. and Ahmed, S. and Nakkoul, H. and Sarker, A. (2011) Genetic improvement of grass pea for low neurotoxin (ODAP) content. Food and Chemical Toxicology, 49 (3). pp. 589-600.

[img] PDF
Restricted to ICRISAT researchers only


Grass pea is a promising crop for adaptation under climate change because of its tolerance to drought, water-logging and salinity, and being almost free from insect-pests and diseases. In spite of such virtues, global area under its cultivation has decreased because of ban on its cultivation in many countries. The ban is imposed due to its association with neurolathyrism, a non-reversible neurological disorder in humans and animals due to presence of neurotoxin, b-N-oxalyl-L-a,b-diaminopropionic acid (b-ODAP) in its seedlings and seeds. The traditional varieties of grass pea contain 0.5–2.5% b-ODAP. Exploitable genetic variability for b-ODAP has been observed for development of low ODAP varieties, which along with improved agronomic and detoxification practices can help reduce the risk of lathyrism. Collaborative efforts between ICARDA and NARS have resulted in development of improved varieties such as Wasie in Ethiopia, Ratan, Prateek and Mahateora in India, and BARI Khesari-1 and BARI Khesari-2 in Bangladesh with <0.10% b-ODAP. Soil application of 15–20 kg ha�1 zinc sulphate, early planting, and soaking seeds in water have shown significant effects on b-ODAP. Because of the often cross-pollination nature, the current breeding procedures being followed in grass pea requires paradigm shift in its approach for a possible genetic breakthrough.

Item Type: Article
Author Affiliation: Biodiversity and Integrated Gene Management Program, International Center for Agricultural Research in the Dry Areas, P.O. Box 5466, Aleppo, Syria
Subjects: Crop Improvement > Genetics/Genomics
Divisions: Other Crops
Depositing User: Sandhya Gir
Date Deposited: 25 Apr 2011 05:20
Last Modified: 25 Apr 2011 05:21
Official URL:

Actions (login required)

View Item View Item