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United States Department of Agriculture

Agricultural Research Service

Title: EVALUATION OF G. HIRSUTUM EXOTIC ACCESSIONS FROM UZBEK COTTON GERMPLASM COLLECTION FOR FURTHER MOLECULAR MAPPING PURPOSES)

Author
item Abdurakhmonov, Ibrokhim
item Abdullaev, Abdumalyan
item Rizaeva, Sofiya
item Buriev, Zabardast
item Adylova, Azoda
item Abdukarimov, Abdusattor
item Saha, Sukumar
item Kohel, Russell
item Pepper, Alan

Submitted to: National Cotton Council Beltwide Cotton Conference
Publication Type: Proceedings
Publication Acceptance Date: 1/5/2004
Publication Date: 5/1/2004
Citation: Abdurakhmonov, I.Y., Abdullaev, A.A., Rizaeva, S.M., Buriev, Z.T., Adylova, A.T., Abdukarimov, A.A., Saha, S., Kohel, R.J., Pepper, A.E. 2004. Evaluation of G. hirsutum exotic accessions from Uzbek cotton germplasm collection for further molecular mapping purposes. Proceedings National Cotton Council Beltwide Cotton Conference. p. 1133-1142.

Interpretive Summary: A total of 724 G. hirsutum accessions, including 228 wild G. hirsutum races (ssp. palmeri, ssp. richmondi, ssp. morilli, spp. mexicanum, ssp. latifolium, ssp. malum, ssp. yucatanense, ssp. punctatum, ssp. purpurascens and ect.), and 858 G. hirsutum accessions belonging to ssp. euhirsutum (according to Mauer) that represent a wide range of ecological niche such as Central Asian, Asian, European, American, African Mexican, and Australian ecotypes were grown and phenotipically evaluated in greenhouse and field stations of the Institute of Genetics and Plants Experimental Biology (IG&PEB) in 2003. Morphobiological diversity within these evaluated cotton accessions has been discussed. Results showed that considerable diversity exists in fiber and agronomic characteristics within the wild accessions of G. hirsutum. Moreover, cataloging of these selected cotton accessions according to international plant cataloging standards are in progress that describes each accession in detail. Furthermore, these selected accessions will be used to tag new potential genes for fiber quality and agronomic traits using linkage-disequilibrium (LD) mapping technology. The genus Gossypium is a very diverse genus with both diploid and tetraploid species. However, a very narrow germplasm base is presently being used for upland cotton, Gossypium hirsutum breeding. Our results showed that many of these lines will be useful as germplasm for the genetic improvement of Upland cotton.

Technical Abstract: An extensive selection of cotton accessions (G. hirsutum L.) from Uzbek cotton germplasm resources with genetic diversity has been carried out. A total of 1086 G. hirsutum accessions, including 228 wild G. hirsutum races (ssp. palmeri, ssp. richmondi, ssp. morilli, ssp. mexicanum, ssp. latifolium, ssp. malum, ssp. yucatanense, ssp. punctatum, ssp. purpurascens and etc.), and 858 G. hirsutum accessions belonging to ssp. euhirsutum (according to Mauer) that represent a wide range of ecological niche such as Central Asian, Asian, European, American, African Mexican, and Australian ecotypes have been selected. 724 accessions out of 1086 selected were grown and phenotypically evaluated in greenhouse and field stations of the Institute of Genetics and Plants Experimental Biology (IG&PEB) in 2003. Morphobiological diversity within these evaluated cotton accessions has been discussed. Moreover, cataloging of these selected cotton accessions according to international plant cataloging standards are in progress that describes each accession in detail. Furthermore, these selected accessions will be used to tag new potential genes for fiber quality and agronomic traits using linkage-disequilibrium (LD) mapping technology.

Last Modified: 8/24/2016
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