Assessment of the spatial genotypic and phenotypic diversity present in the various winter wheat breeding programs in Southeast Europe

I. Karsai, Gy Vida, S. Petrovics, E. Petcu, B. Kobiljski, S. Ivanovska, Z. Bedő, O. Veisz

Research output: Contribution to journalArticle

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Abstract

The genetic diversity present in the breeding programs of southeast Europe was assessed in a set of 114 winter wheat (Triticum aestivum L.) cultivars using AFLP and SSR markers. The average genetic diversity characterised with the Jaccard's distance coefficient was 0.605 with an interval of 0.053 and 0.889. The wheat cultivars originating from the four countries differed from each other in their clustering patterns, including the numbers of clusters and the most prevalent cluster, which was breeding program-specific. Hungarian and Romanian cultivars showed closer relationships, and Serbian and Macedonian cultivars grouped together more frequently. The phenotypic variability of the same cultivars was assessed under diverse ecological conditions of the four growing sites, measuring the disease resistance against two foliar diseases, and several agronomic traits. Of the phenotypic traits, powdery mildew and leaf rust responses showed significant associations with genetic diversity, whereas heading date, plant height and yield components did not. Through parallel assessment of genotypic and phenotypic diversity it was possible to separate winter wheat cultivars with similar genotype but diverse phenotype from those with similar phenotype but diverse genotype. This information will allow breeders to make informed decisions in selecting parents for new crosses.

Original languageEnglish
Pages (from-to)139-151
Number of pages13
JournalEuphytica
Volume186
Issue number1
DOIs
Publication statusPublished - Jul 2012

Fingerprint

Triticum
Breeding
winter wheat
breeding
cultivars
Genotype
Phenotype
genetic variation
Disease Resistance
Cluster Analysis
phenotype
genotype
foliar diseases
leaf rust
heading
powdery mildew
agronomic traits
yield components
amplified fragment length polymorphism
disease resistance

Keywords

  • AFLP
  • Leaf rust
  • Powdery mildew
  • SSR

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Genetics
  • Horticulture
  • Plant Science

Cite this

Assessment of the spatial genotypic and phenotypic diversity present in the various winter wheat breeding programs in Southeast Europe. / Karsai, I.; Vida, Gy; Petrovics, S.; Petcu, E.; Kobiljski, B.; Ivanovska, S.; Bedő, Z.; Veisz, O.

In: Euphytica, Vol. 186, No. 1, 07.2012, p. 139-151.

Research output: Contribution to journalArticle

Karsai, I. ; Vida, Gy ; Petrovics, S. ; Petcu, E. ; Kobiljski, B. ; Ivanovska, S. ; Bedő, Z. ; Veisz, O. / Assessment of the spatial genotypic and phenotypic diversity present in the various winter wheat breeding programs in Southeast Europe. In: Euphytica. 2012 ; Vol. 186, No. 1. pp. 139-151.
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