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United States Department of Agriculture

Agricultural Research Service

Research Project: TOWARD CONTROL STRATEGIES OF EMERGING PATHOGENS AND NEMATODES OF COTTON Title: Correlation of (+) Gossypol level in seeds of cotton hybrids with their insect and disease resistance

Authors
item Namazov, Shadman -
item Bell, Alois
item Stipanovic, Robert
item Marupov, Abbos -
item Ishanqulova, Maqsuda -
item Yuldosheva, Rano -
item Amanturdiev, Ikrom -
item Rakhimov, Tojiddin -

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: February 25, 2011
Publication Date: February 25, 2011
Citation: Namazov, S., Bell, A.A., Stipanovic, R.D., Marupov, A., Ishanqulova, M., Yuldosheva, R., Amanturdiev, I., Rakhimov, T. 2011. Correlation of (+) Gossypol level in seeds of cotton hybrids with their insect and disease resistance. 5th Asian Cotton Research and Development Network Meeting, February 23-25, 2011, Lahore, Pakistan. p45.

Technical Abstract: Cotton is the most important fiber crop and the seed from the plant is a rich source of high quality protein and oil. However, the use of cottonseed as a feed for animals is limited by the presence of gossypol, which is contained in glands in the seed. Gossypol occurs in two stereoenantiomers referred to as (+)- and (-)-gossypol (Jaroszewski et al., 1992). Most of the toxicity of gossypol resides in the ( ) enantiomer (Wu et al., 1986). Gossypol helps protect the plant from pests. However, there is very limited information on how the level (+)- and (-)-gossypol enantiomers correlates with insect and disease resistance. To understand the influence of (+)-gossypol level in seeds on insect and disease resistance we have initiated a study to examine if a correlations exists between percent (+)-gossypol in the seed and resistance to pests. The objective of our research is to develop cotton breeding material with good agronomic qualities that are suited for growing in Uzbekistan, and with a high percentage of (+)- gossypol and determine resistance to insects and pathogens. Results from our research shows that it should be possible to develop cotton breeding material that exhibit the high (+)-gossypol trait in seed and provide suitable insect and diseases resistance with good agronomic traits.

Last Modified: 11/26/2014
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