Record Details
Insights into phylogeny, sex function and age of Fragaria based on whole chloroplast genome sequencing
ScholarsArchive at Oregon State University
| Field | Value |
|---|---|
| Title | Insights into phylogeny, sex function and age of Fragaria based on whole chloroplast genome sequencing |
| Names |
Njuguna, Wambui
(creator) Liston, Aaron (creator) Cronn, Richard (creator) Ashman, Tia-Lynn (creator) Bassil, Nahla (creator) |
| Date Issued | 2013-01 (iso8601) |
| Note | This is the publisher’s final pdf. The published article is copyrighted by Elsevier and can be found at: http://www.journals.elsevier.com/molecular-phylogenetics-and-evolution/. To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. |
| Abstract | The cultivated strawberry is one of the youngest domesticated plants, developed in France in the 1700s from chance hybridization between two western hemisphere octoploid species. However, little is known about the evolution of the species that gave rise to this important fruit crop. Phylogenetic analysis of chloroplast genome sequences of 21 Fragaria species and subspecies resolves the western North American diploid F. vesca subsp. bracteata as sister to the clade of octoploid/decaploid species. No extant tetraploids or hexaploids are directly involved in the maternal ancestry of the octoploids. There is strong geographic segregation of chloroplast haplotypes in subsp. bracteata, and the gynodioecious Pacific Coast populations are implicated as both the maternal lineage and the source of male-sterility in the octoploid strawberries. Analysis of sexual system evolution in Fragaria provides evidence that the loss of male and female function can follow polyploidization, but does not seem to be associated with loss of self-incompatibility following genome doubling. Character-state mapping provided insight into sexual system evolution and its association with loss of self-incompatibility and genome doubling/merger. Fragaria attained its circumboreal and amphitropical distribution within the past one to four million years and the rise of the octoploid clade is dated at 0.372–2.05 million years ago. |
| Genre | Article |
| Topic | Plastome |
| Identifier | Njuguna, W., Liston, A., Cronn, R., Ashman, T., & Bassil, N. (2013). Insights into phylogeny, sex function and age of fragaria based on whole chloroplast genome sequencing. Molecular Phylogenetics and Evolution, 66(1), 17-29. doi: 10.1016/j.ympev.2012.08.026 |
