Revised annotations, sex-biased expression, and lineage-specific genes in the Drosophila melanogaster group. Author Rebekah Rogers, Ling Shao, Jaleal Sanjak, Peter Andolfatto, Kevin Thornton Publication Year 2014 Type Journal Article Abstract Here, we provide revised gene models for D. ananassae, D. yakuba, and D. simulans, which include untranslated regions and empirically verified intron-exon boundaries, as well as ortholog groups identified using a fuzzy reciprocal-best-hit blast comparison. Using these revised annotations, we perform differential expression testing using the cufflinks suite to provide a broad overview of differential expression between reproductive tissues and the carcass. We identify thousands of genes that are differentially expressed across tissues in D. yakuba and D. simulans, with roughly 60% agreement in expression patterns of orthologs in D. yakuba and D. simulans. We identify several cases of putative polycistronic transcripts, pointing to a combination of transcriptional read-through in the genome as well as putative gene fusion and fission events across taxa. We furthermore identify hundreds of lineage specific genes in each species with no blast hits among transcripts of any other Drosophila species, which are candidates for neofunctionalized proteins and a potential source of genetic novelty. Keywords Animals, Sequence Analysis, RNA, Gene Expression Regulation, Species Specificity, Female, Male, Drosophila melanogaster, Ovary, Testis, Genome, Gene Fusion, Genetic Linkage, Molecular Sequence Annotation, Sex Characteristics Journal G3 (Bethesda) Volume 4 Issue 12 Pages 2345-51 Date Published 2014 Oct 01 ISSN Number 2160-1836 DOI 10.1534/g3.114.013532 Alternate Journal G3 (Bethesda) PMCID PMC4267930 PMID 25273863 PubMedPubMed CentralGoogle ScholarBibTeXEndNote X3 XML