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Creator:: Tennessen, Jacob A., Govindarajulu, Rajanikanth, Ashman, Tia-Lynn, and Liston, Aaron
Abstract:: Whole-genome duplications are radical evolutionary events that have driven speciation and adaptation in many taxa. Higher-order polyploids have complex histories often including interspecific hybridization and dynamic genomic changes. This chromosomal reshuffling is poorly understood for most polyploid species, despite their evolutionary and agricultural importance, due to the challenge of distinguishing...

Creator:: Tennessen, Jacob A., Govindarajulu, Rajanikanth, Ashman, Tia-Lynn, and Liston, Aaron
Abstract:: Whole-genome duplications are radical evolutionary events that have driven speciation and adaptation in many taxa. Higher-order polyploids have complex histories often including interspecific hybridization and dynamic genomic changes. This chromosomal reshuffling is poorly understood for most polyploid species, despite their evolutionary and agricultural importance, due to the challenge of distinguishing...

Creator:: Govindarajulu, Rajanikanth, Liston, Aaron, and Ashman, Tia-Lynn
Abstract:: We studied the natural hybrid (Fragaria ×ananassa subsp. cuneifolia) between two sexually dimorphic octoploid strawberry species (F. virginiana and F. chiloensis) to gain insight into the dynamics of sex chromosomes and the genesis of sexual dimorphism. Male sterility is dominant in both the parental species and thus will be inherited...

Creator:: Govindarajulu, Rajanikanth, Liston, Aaron, and Ashman, Tia-Lynn
Abstract:: We studied the natural hybrid (Fragaria ×ananassa subsp. cuneifolia) between two sexually dimorphic octoploid strawberry species (F. virginiana and F. chiloensis) to gain insight into the dynamics of sex chromosomes and the genesis of sexual dimorphism. Male sterility is dominant in both the parental species and thus will be inherited...

Creator:: Govindarajulu, Rajanikanth, Liston, Aaron, and Ashman, Tia-Lynn
Abstract:: We studied the natural hybrid (Fragaria ×ananassa subsp. cuneifolia) between two sexually dimorphic octoploid strawberry species (F. virginiana and F. chiloensis) to gain insight into the dynamics of sex chromosomes and the genesis of sexual dimorphism. Male sterility is dominant in both the parental species and thus will be inherited...

Creator:: Stanley, Lauren, Forrester, Nicole J., Govindarajulu, Rajanikanth, Liston, Aaron, and Ashman, Tia-Lynn
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...
Resource Type:: Article

Creator:: Ashman, Tia-Lynn, Tennessen, Jacob A., Dalton, Rebecca M., Govindarajulu, Rajanikanth, Koski, Matthew H., and Liston, Aaron
Abstract:: Gynodioecy, the coexistence of females and hermaphrodites, occurs in 20% of angiosperm families and often enables transitions between hermaphroditism and dioecy. Clarifying mechanisms of sex determination in gynodioecious species can thus illuminate sexual system evolution. Genetic determination of gynodioecy, however, can be complex and is not fully characterized in any...
Resource Type:: Article

Creator:: Tennessen, Jacob A., Govindarajulu, Rajanikanth, Ashman, Tia-Lynn, and Liston, Aaron
Abstract:: Whole-genome duplications are radical evolutionary events that have driven speciation and adaptation in many taxa. Higher-order polyploids have complex histories often including interspecific hybridization and dynamic genomic changes. This chromosomal reshuffling is poorly understood for most polyploid species, despite their evolutionary and agricultural importance, due to the challenge of distinguishing...
Resource Type:: Article

Creator:: Liston, Aaron, Cronn, Richard, and Ashman, Tia-Lynn
Abstract:: The cultivated strawberry, Fragaria Xananassa, is one of the youngest domesticated plants. Its 18th century origin via hybridization in Europe between the North American F. virginiana and the South American F. chiloensis was documented by the botanist Antoine Nicolas Duchesne. His 1766 “Natural History of Strawberries” is an extraordinary work...
Resource Type:: Article

Creator:: Tennessen, Jacob A., Govindarajulu, Rajanikanth, Liston, Aaron, and Ashman, Tia-Lynn
Abstract:: Gynodioecy is a sexual system wherein females coexist with hermaphrodites. It is of interest not only because male-sterile plants are advantageous in plant breeding but also because it can be a crucial step in the evolutionary transition to entirely separate sexes (dioecy) from a hermaphroditic ancestor. The gynodioecious diploid wild...
Resource Type:: Article

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