Bain, S.A., Marshall, H., de la Filia, A.G., Laetsch, D.R., Husnik, F., & Ross, L. 2021 Sex-specific expression and DNA methylation in a species with extreme sexual dimorphism and paternal genome elimination. Molecular Ecology DOI: 10.1111/mec.15842

Keywords:

chemistry

chromosome

genetics

Notes: The mealybug, Planococcus citri, displays extreme sexual dimorphism and exhibits an unusual instance of sex-specific genomic imprinting, paternal genome elimination (PGE), in which the paternal chromosomes in males are highly condensed and eliminated from the sperm. Using RNA-Seq, we identify extensive sex-specific gene expression and alternative splicing, but we find no correlation with cis-acting DNA methylation.