Preferential occupancy of R2 retroelements on the B chromosomes of the grasshopper Eyprepocnemis plorans

• Published in: PloS one Vol. 9; no. 3; p. e91820
• Main Authors: Montiel, Eugenia E, Cabrero, Josefa, Ruiz-Estévez, Mercedes, Burke, William D, Eickbush, Thomas H, Camacho, Juan Pedro M, López-León, María Dolores
• Format: Journal Article
• Language: English
• Published: United States Public Library of Science 14.03.2014; Public Library of Science (PLoS)
• Subjects: Amino Acid Sequence; Animals; Biology and Life Sciences; Chromosomes; Chromosomes, Insect; Clusters; Deoxyribonucleic acid; DNA; Drosophila melanogaster; Gene Dosage; Genes; Genetic research; Genomes; Grasshoppers - genetics; Insects; Insertion; Locusta migratoria; Male; Molecular Sequence Data; Organisms; Populations; Position-Specific Scoring Matrices; Proteins; Retroelements; Retrotransposition; RNA; rRNA 28S; Sequence Alignment; Transcription; Transcription (Genetics); Transcription, Genetic; Transposons

R2 non-LTR retrotransposons exclusively insert into the 28S rRNA genes of their host, and are expressed by co-transcription with the rDNA unit. The grasshopper Eyprepocnemis plorans contains transcribed rDNA clusters on most of its A chromosomes, as well as non-transcribed rDNA clusters on the paras...