Application of morphological descriptions and genetic markers to analyse polymorphism and genetic relationships in maize (Zea Mays L.)

E. Nagy, G. Gyulai, Z. Szabó, Z. Hegyi, L. C. Marton

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Studies involving morphological description with both dominant (RAPD) and codominant (SSR, isoenzyme) molecular markers were made on 28 maize inbred lines of known genetic background with a final aim of prediction of heterosis. The genetic distance and degree of relationship between the lines was determined using cluster analysis. Only a very limited extent of allele polymorphism could be detected in isoenzyme analyses as the 28 lines formed only 16 gel electrophoretic groups, indicating that certain lines had identical isoenzyme patterns. On the basis of RAPD and gene-specific microsatellite (SSR) markers, however, all the lines could be distinguished from each other. When the lines were grouped according to genetic background it was found that although the individual marker systems only partially reflected the actual relationships between the lines, a joint processing of the data, supplemented with morphological data, revealed a close correlation between the groups formed on the dendrogram and the genetic background.

Original languageEnglish
Pages (from-to)257-265
Number of pages9
JournalActa Agronomica Hungarica
Volume51
Issue number3
DOIs
Publication statusPublished - 2003

Keywords

  • Cluster analysis
  • Isoenzyme
  • Maize
  • Polymorphism
  • RAPD
  • SSR

ASJC Scopus subject areas

  • Agronomy and Crop Science

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