Article
 

Geographic patterns of genetic variation in three genomes of North American diploid strawberries with special reference to Fragaria vesca subsp. bracteata

Öffentlich Deposited

Herunterladbarer Inhalt

PDF Herunterladen
https://ir.library.oregonstate.edu/concern/articles/2j62s670z

Descriptions

Attribute NameValues
Creator
Abstract
  • Geographic patterns of genetic variation in wild species reflect the interplay of ecological and evolutionary processes. We assessed genetic variation in three genomes across four North American diploid strawberry taxa, with special emphasis on the gynodioecious Fragaria vesca subsp. bracteata (A.Heller) Staudt. Specifically, we sequenced one chloroplast (rpoC2) and two mitochondrial (atp8 and atp8-orf225) genes along with several nuclear microsatellite markers. In addition, we assessed indicators of breeding system (pollen viability and female frequency) for all taxa. The geographic perspective on the distribution of cytoplasmic and nuclear variation revealed the genetic affiliation of the restricted taxa (Fragaria vesca subsp. californica (Cham. & Schltdl.) Staudt and Fragaria mexicana Schltdl.) with the widespread F. vesca subsp. bracteata and identified a hotspot of hybridization within gynodioecious F. vesca subsp. bracteata. Higher pollen viability of hermaphrodites was found in the three hermaphroditic taxa relative to the gynodioecious one. Although theoretically predicted to be associated, the proportion of females within F. vesca subsp. bracteata populations was not correlated with population-level genetic variation, suggesting that the history of hybridization or population size variation is more influential on the distribution of genetic variation than sex ratio in this gynodioecious species. The documented patterns of genetic variation in this complex serve as an important point of reference for future ecological and evolutionary research in diploid Fragaria
  • Keywords: gynodioecy, hybridization, genetic structure, mitochondria, chloroplast, pollen viability
Resource Type
DOI
Date Available
Date Issued
Citation
  • Stanley, L., Forrester, N. J., Govindarajulu, R., Liston, A., & Ashman, T. L. (2015). Geographic patterns of genetic variation in three genomes of North American diploid strawberries with special reference to Fragaria vesca subsp. bracteata. Botany, 93(9), 573-588. doi:10.1139/cjb-2015-0031
Journal Title
Journal Volume
  • 93
Journal Issue/Number
  • 9
Urheberrechts-Erklärung
Funding Statement (additional comments about funding)
  • This work was supported by the University of Pittsburgh, the National Science Foundation (DEB 1020523 and RET/REU supplements to TLA and DEB 1020271 to AL), and HHMI Fellowship to LS.
Publisher
Peer Reviewed
Language
Replaces

Beziehungen

Parents:

This work has no parents.

Artikel

Miniaturansicht Titel Hochladedatum Sichtbarkeit Aktionen
file details StanleyGeographicPatternsOfGeneticVariation.pdf 2017-07-25 Öffentlich Herunterladen