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 ...

In this research phylogenetic relationships of the two genera Fragaria and Duchesnea, including four species ( Fragaria viridis, F. vesca, Duchesnea indica and D. chrysantha) and 2 of their closely related species (Potentilla reptans and P. micrantha) plus 2 Fillipendulla species ( representing outgroups) were carried out using morphological traits. Primarily, morphological evidences of 30 taxa...

The self-incompatibility mechanism that reduces inbreeding in many plants of the Rosaceae is attributed to a multi-allelic S locus which, in the Prunoideae and Maloideae subfamilies, comprises two complementary genes, a stylar-expressed S-RNase and a pollen-expressed SFB. To elucidate incompatibility in the subfamily Rosoideae, stylar-specific RNases and self-(in)compatibility status were analy...

Environmental factors affecting flower development may limit the yields of fruiting crops worldwide. In temperate regions, chilling temperatures during flower development can compromise fruit production, but their negative effects vary depending on the differing susceptibilities of each developmental stage. The cultivated strawberry (Fragaria× ananassa Duch.) is widely grown worldwide but finan...

DNA N4-Methylcytosine is a genetic modification process which has an essential role in changing different biological processes such as conformation, replication, stability, cell development and structural alteration DNA. Due to its negative effects, it important identify the modified 4mC sites. Further, methylcytosine may develop anywhere at cytosine residue, however, clonal gene expression pat...

The use of simple sequence repeats (SSRs), or microsatellites, as genetic markers has become popular due to their abundance and variation in length among individuals. In this study, we investigated linkage groups (LGs) in the woodland strawberry (Fragaria vesca) and demonstrated variation in the abundances, densities, and relative densities of mononucleotide, dinucleotide, and trinucleotide rep...

Title of Document: ELEVATED TEMPERATURE EFFECTS ON CAROTENOID BIOSYNTHESIS IN THE DIPLOID STRAWBERRY, FRAGARIA VESCA Melantha E. Jackson, Doctor of Philosophy, 2015 Directed By: Professor Herman Sintim Department of Chemistry and Biochemistry Carotenoids, a subfamily of the isoprenoids, are one of the most diverse classes of secondary metabolites distributed throughout nature. They are lipophil...

Fragaria vesca (2n = 2x = 14), the woodland strawberry, is a perennial herbaceous plant with a small sequenced genome (240 Mb). It is commonly used as a genetic model plant for the Fragaria genus and the Rosaceae family. Fruit skin color is one of the most important traits for both the commercial and esthetic value of strawberry. Anthocyanins are the most prominent pigments in strawberry that b...