Asexual male production by ZW recombination in Artemia parthenogenetica

In some asexual species, parthenogenetic females occasionally produce males, which may strongly affect the evolution and maintenance of asexuality if they cross with related sexuals and transmit genes causing asexuality to their offspring (“contagious parthenogenesis”). How these males arise in the first place has remained enigmatic, especially in species with sex chromosomes. Here, we test the hypothesis that rare, asexually produced males of the crustacean Artemia parthenogenetica are produced by recombination between the Z and W sex chromosomes during non-clonal parthenogenesis, resulting in ZZ males through loss of heterozygosity at the sex determination locus. We used RAD-sequencing to compare asexual mothers with their male and female offspring. Markers on several sex-chromosome scaffolds indeed lost heterozygosity in all male but no female offspring, suggesting that they correspond to the sex-determining region. Other sex-chromosome scaffolds lost heterozygosity in only a part of..., , , # Data from: Asexual male production by ZW recombination in Artemia parthenogenetica

[https://doi.org/10.5061/dryad.vdncjsxx2](https://doi.org/10.5061/dryad.vdncjsxx2)

## Description of the data and file structure

Here is the description of the data files from \"Asexual male production by ZW recombination in *Artemia parthenogenetica*\"

## Akaz\_scaffold\_ZA\_assignation.csv

Table containing the assignation of *A. sp Kazakhstan* scaffolds to the sex chromosomes (96) or autosomes (1998), and the method(s) that allowed this assignation, as indicated by 0 or 1 under the corresponding column(s).
\"scaffold\" is the scaffold from the *Akaz* assembly presented in the paper.
\"chromosome_assignation\" is the assignation of a given scaffold to either Autosome or Z (sex) chromosome.
\"RNAseq\": if equal to 1, this scaffold was assigned using the analysis of RNAseq data of *Akaz* males and females based on consistent heterozygosity/homozygosity.
\"orthology\": if equal to 1, this scaffold was assigned...