Use of RFLP's in Predicting Agronomic Performance

Z. Shappley, C. Watson, Jr., J. Jenkins, M. Robinson, B. Tang


 
ABSTRACT

Yield and fiber data from two different experiments were analyzed in two individual sets with corresponding parental and F2 RFLP patterns in an attempt at identifying molecular marker/agronomic associations. Pearson correlation coefficients were calculated for measurements of association among RFLP's with yield and fiber data among parent, additive F2, and dominant F2 genetic models. Significant correlations were seen in the first data set for two RFLP fragments with fiber strength, as well as, one fragment with micronaire, in four different environments for all genetic models. Variability estimates attributed to RFLP fragments in the strength and micronaire correlations over all genetic models averaged 30% for both. Significant correlations were also seen in the second data set for boll size and lint percent with two RFLP fragments apiece in two different environments for all genetic models. Variability estimates averaged over all three genetic models consisted of RFLP's attributing 35% for lint percent and 25% for boll size.



Reprinted from 1995 Proceedings Beltwide Cotton Conference pg. 531
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998