Tuesday, September 11, 2007 - 1:15 PM

Cotton germplasm collection and an updated taxonomy of Gosypium L

Dr. Abdumavlyan A. Abdullaev1, Dr. V. P Klyat1, Dr. Sofiya M Rizaeva1, Dr. Alisher A. Abdullaev2, and Dr. Ibrokhim Y. Abdurakhmonov2. (1) Laboratory of Cotton Systematics and Introduction, Institute of Genetics and Plant Experimental Biology, Yuqori-Yuz, Kibray region, Tashkent, 702151, Uzbekistan, (2) Laboratory of Genetic Engineering and Biotechnology, Institute of Genetics and Plant Experimental Biology, Yuqori-Yuz, Kibray region, Tashkent, 702151, Uzbekistan

One of the largest and richest cotton germplasm collections has been created in Uzbekistan following 50 years of world wide efforts collecting wild, primitive, and cultural-tropical forms and species of cotton, Gossypium spp., as well as exchanging germplasm with other countries and organizations. Our germplasm unit maintains nearly 6,500 cotton germplasm accessions, including 40 wild species, elite AD allotetraploid cultivars and hybrids, along with wild, primitive, and extant representatives of the A to G genome groups. On the basis of investigations of the gene pools from our collection, we describe the evolution of the Gossypium genus and update the Mauer taxonomy system for Gossypium. We separated Gossypium into 58 species, 4 sub-genus groupings as described by Fryxell (1992), 10 sections, and 13 sub-sections. We included all new species found in the end of the twentieth century in updated taxonomy, some of which were unknown to Mauer. The taxonomy will be updated with the results of molecular analyses and detail study of cotton species lacking in our collection

See more of Plant Breeding and Genetics--Poster Session
See more of Plant Breeding and Genetics

See more of The World Cotton Research Conference-4 (September 10-14, 2007)