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Title: COTTON GOSSYPIUM SPP. PLANT GOSSYPOL CONTENTS OF SELECTED GL2 AND GL3 ALLELES

Author
item McCarty, Jack
item Hedin, Paul
item Stipanovic, Robert - Bob

Submitted to: American Chemical Society Abstracts
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 10/8/1995
Publication Date: N/A
Citation: N/A

Interpretive Summary: The gossypol content of cotton has been of interest to plant breeders because those that have high levels often carry resistance to the tobacco budworm. However, its presence in seed has economic disadvantages to the seed and oil processing industry. Research has been carried out over a number of years to produce cotton plants that have high gossypol in leaves and squares but low gossypol in seed. Commencing with native lines as high gossypol sources, some alleles for these traits have been transferred into commercial lines with a degree of success. In this study, the GL3 allele was transferred into G. hirsutum so that plant bud tissue was relatively high in gossypol while seed was relatively low.

Technical Abstract: The gossypol content of cotton Gossypium spp. has been of interest to plant breeders because those that have high levels often carry resistance to the tobacco budworm Heliothis virescens (F.). However, its presence in seed has economic disadvantages to the seed and oil processing industry. Previously, two alleles which control plant gossypol, GL2 and GL3, were successfully transferred from several sources to a common background, XG-15. GL3 has now been transferred from G. raimondii (Ulbr.), a Peruvian wild diploid species, and G. davidsonii (Kell), a Mexican wild diploid species, into G. hirsutum (Upland) cottons. The plant bud tissue resulting from these crosses is relatively high in gossypol, while seed is relatively low.