Using a linkage mapping approach to identify QTL for day-neutrality in the octoploid strawberry

C. K. Weebadde, D. Wang, C. E. Finn, K. S. Lewers, J. J. Luby, J. Bushakra, T. M. Sjulin, J. F. Hancock

Research output: Contribution to journalArticlepeer-review

59 Scopus citations

Abstract

A linkage mapping approach was used to identify quantitative trait loci (QTL) associated with day-neutrality in the commercial strawberry, Fragaria x ananassa (Duch ex Rozier). Amplified Fragment Length Polymorphism (AFLP) markers were used to build a genetic map with a population of 127 lines developed by crossing the day-neutral (DN) 'Tribute' with the short-day (SD) 'Honeoye'. The population was genotyped with AFLP markers and 429 single dose restriction fragments (SDRF) were placed on a consensus map of 1541 cM with 43 linkage groups. Individuals from the mapping population were observed for their flowering habit throughout the growing season in Michigan (MI), Minnesota (MN), Maryland (MD), Oregon (OR) and California (CA). Eight QTL were found that were either location specific or shared among locations. None of these QTL explained >36% of the phenotypic variation, indicating that the inheritance of day-neutrality is likely a polygenic trait.

Original languageEnglish (US)
Pages (from-to)94-101
Number of pages8
JournalPlant Breeding
Volume127
Issue number1
DOIs
StatePublished - Feb 1 2008

Keywords

  • AFLPs
  • Everbearing strawberries
  • Fragaria x ananassa
  • Photoperiod insensitivity
  • QTL mapping

Fingerprint Dive into the research topics of 'Using a linkage mapping approach to identify QTL for day-neutrality in the octoploid strawberry'. Together they form a unique fingerprint.

Cite this