Genetic mapping and phylogenetic analysis reveal intraspecific variation in sex chromosomes of the Virginian strawberry

Publication Overview
TitleGenetic mapping and phylogenetic analysis reveal intraspecific variation in sex chromosomes of the Virginian strawberry
AuthorsWei N, Govindarajulu R, Tennessen JA, Liston A, Ashman TL
TypeJournal Article
Journal NameThe Journal of Heredity
Volume108
Issue7
Year2017
Page(s)731-739
CitationWei N, Govindarajulu R, Tennessen JA, Liston A, Ashman TL. Genetic mapping and phylogenetic analysis reveal intraspecific variation in sex chromosomes of the Virginian strawberry. The Journal of Heredity. 2017 Sep 27; 108(7):731-739.

Abstract

With their extraordinary diversity in sexual systems, flowering plants offer unparalleled opportunities to understand sex determination and to reveal generalities in the evolution of sex chromosomes. Comparative genetic mapping of related taxa with good phylogenetic resolution can delineate the extent of sex chromosome diversity within plant groups, and lead the way to understanding the evolutionary drivers of such diversity. The North American octoploid wild strawberries provide such an opportunity. We performed linkage mapping using targeted sequence capture for the subdioecious western Fragaria virginiana ssp. platypetala and compared the location of its sex-determining region (SDR) to those of two other (sub)dioecious species, the eastern subspecies, F. virginiana ssp. virginiana (whose SDR is at 0-5.5 Mb on chromosome VI of the B2 subgenome), and the sister species F. chiloensis (whose SDR is at 37 Mb on chromosome VI of the Av subgenome). Male sterility was dominant in F. virginiana ssp. platypetala and mapped to a chromosome also in homeologous group VI. Likewise, one major QTL for female fertility overlapped the male sterility region. However, the SDR mapped to a yet another subgenome (B1), and to a different location (13 Mb), but similar to the location inferred in one population of the naturally occurring hybrid between F. chiloensis and F. virginiana (F. x ananassa ssp. cuneifolia). Phylogenetic analysis of chromosomes across the octoploid taxa showed consistent subgenomic composition reflecting shared evolutionary history but also reinforced within-species variation in the SDR-carrying chromosome, suggesting either repeated evolution, or recent turnovers in SDR.

Features
This publication contains information about 6,763 features:
Feature NameUniquenameType
Fvb1_8027728Fvb1_8027728genetic_marker
Fvb1_8067619Fvb1_8067619genetic_marker
Fvb1_8067628Fvb1_8067628genetic_marker
Fvb1_8067665Fvb1_8067665genetic_marker
Fvb1_8067681Fvb1_8067681genetic_marker
Fvb1_8104086Fvb1_8104086genetic_marker
Fvb1_8202981Fvb1_8202981genetic_marker
Fvb1_8205431Fvb1_8205431genetic_marker
Fvb1_8205584Fvb1_8205584genetic_marker
Fvb1_8205705Fvb1_8205705genetic_marker
Fvb1_8233594Fvb1_8233594genetic_marker
Fvb1_8233657Fvb1_8233657genetic_marker
Fvb1_8233677Fvb1_8233677genetic_marker
Fvb1_8233718Fvb1_8233718genetic_marker
Fvb1_8233720Fvb1_8233720genetic_marker
Fvb1_8233734Fvb1_8233734genetic_marker
Fvb1_8299858Fvb1_8299858genetic_marker
Fvb1_8300017Fvb1_8300017genetic_marker
Fvb1_8300026Fvb1_8300026genetic_marker
Fvb1_8315215Fvb1_8315215genetic_marker
Fvb1_8315361Fvb1_8315361genetic_marker
Fvb1_8315412Fvb1_8315412genetic_marker
Fvb1_8315491Fvb1_8315491genetic_marker
Fvb1_832240Fvb1_832240genetic_marker
Fvb1_832314Fvb1_832314genetic_marker

Pages

Projects
This publication contains information about 1 projects:
Project NameDescription
Strawberry-sex_function-Ashman-2017
Featuremaps
This publication contains information about 1 maps:
Map Name
Strawberry-Fvp-F1-2017
Stocks
This publication contains information about 1 stocks:
Stock NameUniquenameType
Fragaria virginiana ssp. platypetalaFragaria virginiana ssp. platypetalaaccession