{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,8]],"date-time":"2026-03-08T09:46:34Z","timestamp":1772963194662,"version":"3.50.1"},"reference-count":71,"publisher":"Oxford University Press (OUP)","issue":"4","license":[{"start":{"date-parts":[[2021,1,11]],"date-time":"2021-01-11T00:00:00Z","timestamp":1610323200000},"content-version":"vor","delay-in-days":285,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2020,4,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>In eukaryotic genomes, ribosomal RNA (rRNA) genes exist as tandemly repeated clusters, forming ribosomal DNA (rDNA) loci. Each rDNA locus typically contains hundreds of rRNA genes to meet the high demand of ribosome biogenesis. Nucleolar dominance is a phenomenon whereby individual rDNA loci are entirely silenced or transcribed, and is believed to be a mechanism to control rRNA dosage. Nucleolar dominance was originally noted to occur in interspecies hybrids, and has been shown to occur within a species (i.e., nonhybrid context). However, studying nucleolar dominance within a species has been challenging due to the highly homogenous sequence across rDNA loci. By utilizing single nucleotide polymorphisms between X rDNA and Y rDNA loci in males, as well as sequence variations between two X rDNA loci in females, we conducted a thorough characterization of nucleolar dominance throughout development of Drosophila melanogaster. We demonstrate that nucleolar dominance is a developmentally regulated program that occurs in nonhybrid, wild-type D. melanogaster, where Y rDNA dominance is established during male embryogenesis, whereas females normally do not exhibit dominance between two X rDNA loci. By utilizing various chromosomal complements (e.g., X\/Y, X\/X, X\/X\/Y) and a chromosome rearrangement, we show that the short arm of the Y chromosome including the Y rDNA likely contains information that instructs the state of nucleolar dominance. Our study begins to reveal the mechanisms underlying the selection of rDNA loci for activation\/silencing in nucleolar dominance in the context of nonhybrid D. melanogaster.<\/jats:p>","DOI":"10.1534\/genetics.119.302471","type":"journal-article","created":{"date-parts":[[2020,3,2]],"date-time":"2020-03-02T19:55:13Z","timestamp":1583178913000},"page":"991-1004","source":"Crossref","is-referenced-by-count":21,"title":["Regulation of Nucleolar Dominance in\n                    <i>Drosophila melanogaster<\/i>"],"prefix":"10.1093","volume":"214","author":[{"given":"Natalie","family":"Warsinger-Pepe","sequence":"first","affiliation":[{"name":"Department of Molecular and Integrative Physiology , University of Michigan, Ann Arbor, Michigan"},{"name":"Life Sciences Institute , University of Michigan, Ann Arbor, Michigan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Duojia","family":"Li","sequence":"additional","affiliation":[{"name":"Life Sciences Institute , University of Michigan, Ann Arbor, Michigan"},{"name":"Molecular , Cellular and Developmental Biology, University of Michigan, Ann Arbor, Michigan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yukiko M","family":"Yamashita","sequence":"additional","affiliation":[{"name":"Life Sciences Institute , University of Michigan, Ann Arbor, Michigan"},{"name":"Cell and Developmental Biology , University of Michigan, Ann Arbor, Michigan"},{"name":"Howard Hughes Medical Institute , University of Michigan, Ann Arbor, Michigan 48109"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2020,4,1]]},"reference":[{"key":"2024011906311981400_bib1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pgen.1005148","article-title":"Transgenerational inheritance of diet-induced genome rearrangements in Drosophila.","volume":"11","author":"Aldrich","year":"2015","journal-title":"PLoS Genet."},{"key":"2024011906311981400_bib2","doi-asserted-by":"publisher","first-page":"1457","DOI":"10.1534\/genetics.117.300390","article-title":"The hybrid incompatibility genes Lhr and Hmr are required for sister chromatid detachment during anaphase but not for centromere function.","volume":"207","author":"Blum","year":"2017","journal-title":"Genetics"},{"key":"2024011906311981400_bib3","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1093\/genetics\/1.1.1","article-title":"Non-disjunction as proof of the chromosome theory of heredity.","volume":"1","author":"Bridges","year":"1916","journal-title":"Genetics"},{"key":"2024011906311981400_bib4","doi-asserted-by":"publisher","first-page":"252","DOI":"10.1126\/science.54.1394.252","article-title":"Triploid intersexes in drosophila melanogaster.","volume":"54","author":"Bridges","year":"1921","journal-title":"Science"},{"key":"2024011906311981400_bib5","first-page":"857","article-title":"Silver staining of nucleolar granules in tumor cells.","volume":"39","author":"Busch","year":"1979","journal-title":"Cancer Res."},{"key":"2024011906311981400_bib6","doi-asserted-by":"publisher","first-page":"84","DOI":"10.1016\/0012-1606(74)90285-1","article-title":"Repression of nucleolar organizer activity in an interspecific hybrid of the genus Xenopus.","volume":"41","author":"Cassidy","year":"1974","journal-title":"Dev. 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