Isozyme patterns of peanut varieties (Arachis hypogaea L.) in relation to resistance to Cercospora leaf spot

Date

3-1989

Degree

Bachelor of Science in Biology

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Dolores A. Ramirez

Abstract

Resistant, moderately resistant, and susceptible to Cercospora leaf spot of peanut accessions revealed the peroxidase and acid phosphatase banding patterns. No distinguishing isozyme for resistant, moderately resistant, and susceptible accessions was observed. One anodic and seven cathodic bands were observed for peroxidase. All accessions were suggested to be heterozygotes for the Px-3 and Px-4 loci. The accessions can not be distinguished from each other using the peroxidase isozymes since difference in Rf values for each loci were not significant. Six anodic bands were resolved for acid phosphatase and SGPn 48 can be deter-mined from other accessions using the Acp-3 isozyme c-:.t 5;4 level of significance. All accessions were suggested to be heterozygote for the Acp-1 locus where mode of gene action was suggested to be of codominance.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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