Association of acid phosphatase isozymes of tomato (Lycopersicon esculentum L.) with resistance to root-knot nematode (Meloidogyne incognita M.)

Date

3-1988

Degree

Bachelor of Science in Biology

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Dolores A. Ramirez

Abstract

Acid phosphatase isozyme patterns of tour highly. resistant and four susceptible tome to accessions to root-knot nematodes were compared. Starch gel electrophoresis of the acid phosphatase from leaf extracts was done. All resistant accessions exhibited An Aps-1 isozyme which could possibly be the Aps-11 allozyme linked to the nematode resistance gene Mi. Although the Rf values of Ans-1 from each resistant accession are not identical, the difference Were not significant. Both resistant and susceptible accessions have three bands in common, Aps-?, Ans-3, and Aps-4. The resistant accessions cannot be distinguished from each other using these isozymes since difference in mean Rf values for each loci are not significant. Among the susceptible accessions, Marikit can be distinguished from the others by the Ans-4 locus. All accessions (resistant and susceptible) exhibited homozygosity for each locus.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Document Type

Thesis

This document is currently not available here.

Share

COinS