Mapping QTL associated with Verticillium dahliae resistance in the cultivated strawberry (Fragaria 3 ananassa)

L. Antanaviciute, N. Surbanovski, N. Harrison, K.J. McLeary, D.W. Simpson, F. Wilson, D.J. Sargent, R.J. Harrison*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

28 Citations (Scopus)

Abstract

A biparental cross of octoploid strawberry segregating for resistance to Verticillium dahliae, the causative agent of Verticillium wilt, was screened under field conditions for three seasons. Average wilt scores were significantly associated with multiple QTL, which were mostly significant across all years. Markers significantly associated with the traits were used to screen material with known wilt resistance and susceptibility phenotypes. A clear and statistically significant relationship was observed between resistant, tolerant and susceptible material and the total number of markers present in the different resistance classes. In field situations resistance QTL appear to behave in an additive manner. These markers are abundant in the cultivated strawberry germplasm indicating that, despite the large number of markers, clear genetic gain is possible through marker-assisted breeding.

Original languageEnglish
Article number15009
JournalHorticulture Research
Volume2
DOIs
Publication statusPublished - 11 Mar 2015
Externally publishedYes

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