ARS | Publication request: QTL ANALYSIS OF FIBER STRENGTH IN COTTON

Submitted to: Agronomy Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: October 1, 1996
Publication Date: N/A

Technical Abstract: Cultivated cotton (Gossypium hirsutum L. and G. barbadense L.) is the leading natural fiber crop. Fiber strength is the main property of cotton fibers that is limiting in textile processing. Inheritance of cotton fiber strength, as measured by fiber bundles, displays additive quantitative nature. Classical cotton breeding has been successful in improving fiber strength only through the tedious process of selection based on measuring fiber strength in advanced generation of selected lines. The use of DNA markers and new methods to measure strength allow us to use greater precision to attack the problem. In this paper, several hundreds of DNA markers and new methods to measure strength allow us to use greater precision to attack the problem. In this paper, several hundreds of DNA markers including RFLPs, RAPDs, AFLPs, and SSRs are used for construction of cotton framework map based on F2 progeny from an interspecific cross between two commercially important cottons, G. hirsutum acc. TM-1 and G. barbadense acc. 3-79, and subsequently for QTL analysis of cotton fiber strength. The genomic location and relative contribution of QTLs identified for the fiber strength will be discussed.