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.

Projects
This publication contains information about 1 projects:
Project NameDescription
Strawberry-sex_function-Ashman-2017
Features
This publication contains information about 6,763 features:
Feature NameUniquenameType
Fvb1_16744282Fvb1_16744282genetic_marker
Fvb1_16744353Fvb1_16744353genetic_marker
Fvb1_16744361Fvb1_16744361genetic_marker
Fvb1_16744369Fvb1_16744369genetic_marker
Fvb1_16782739Fvb1_16782739genetic_marker
Fvb1_16832413Fvb1_16832413genetic_marker
Fvb1_16832419Fvb1_16832419genetic_marker
Fvb1_16832430Fvb1_16832430genetic_marker
Fvb1_16832579Fvb1_16832579genetic_marker
Fvb1_16860263Fvb1_16860263genetic_marker
Fvb1_16860265Fvb1_16860265genetic_marker
Fvb1_1687371Fvb1_1687371genetic_marker
Fvb1_17221837Fvb1_17221837genetic_marker
Fvb1_17221859Fvb1_17221859genetic_marker
Fvb1_17221865Fvb1_17221865genetic_marker
Fvb1_1722618Fvb1_1722618genetic_marker
Fvb1_17253584Fvb1_17253584genetic_marker
Fvb1_17253599Fvb1_17253599genetic_marker
Fvb1_17253701Fvb1_17253701genetic_marker
Fvb1_17253704Fvb1_17253704genetic_marker
Fvb1_17253712Fvb1_17253712genetic_marker
Fvb1_17253775Fvb1_17253775genetic_marker
Fvb1_17283418Fvb1_17283418genetic_marker
Fvb1_17283533Fvb1_17283533genetic_marker
Fvb1_17364041Fvb1_17364041genetic_marker

Pages

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. platypetalawild_unimproved
Cross References
This publication is also available in the following databases:
DatabaseAccession
PMID: PubMedPMID:29036451