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PMID: 24759411 Published · ppublish English Journal Article Research Support, Non-U.S. Gov't

Mammalian Y chromosomes retain widely expressed dosage-sensitive regulators.

Nature ·Vol. 508 ·No. 7497 ·2014-04-24 ·Pages 494-9

Bellott DW, Hughes JF, Skaletsky H, Brown LG, Pyntikova T, Cho TJ, Koutseva N, Zaghlul S, Graves T, Rock S, Kremitzki C, Fulton RS, Dugan S, Ding Y, Morton D, Khan Z, Lewis L, Buhay C, Wang Q, Watt J, Holder M, Lee S, Nazareth L, Alföldi J, Rozen S, Muzny DM, Warren WC, Gibbs RA, Wilson RK, Page DC

Abstract

The human X and Y chromosomes evolved from an ordinary pair of autosomes, but millions of years ago genetic decay ravaged the Y chromosome, and only three per cent of its ancestral genes survived. We reconstructed the evolution of the Y chromosome across eight mammals to identify biases in gene content and the selective pressures that preserved the surviving ancestral genes. Our findings indicate that survival was nonrandom, and in two cases, convergent across placental and marsupial mammals. We conclude that the gene content of the Y chromosome became specialized through selection to maintain the ancestral dosage of homologous X-Y gene pairs that function as broadly expressed regulators of transcription, translation and protein stability. We propose that beyond its roles in testis determination and spermatogenesis, the Y chromosome is essential for male viability, and has unappreciated roles in Turner's syndrome and in phenotypic differences between the sexes in health and disease.

MeSH Terms
Animals Chromosomes, Human, X/genetics Chromosomes, Human, Y/genetics Disease Evolution, Molecular Female Gene Dosage/genetics Gene Expression Regulation Health Humans Male Mammals/genetics Marsupialia/genetics Molecular Sequence Annotation Molecular Sequence Data Protein Biosynthesis/genetics Protein Stability Selection, Genetic/genetics Sequence Homology Sex Characteristics Spermatogenesis/genetics Testis/metabolism Transcription, Genetic/genetics Turner Syndrome/genetics X Chromosome/genetics Y Chromosome/genetics
Authors & Affiliations
30 authors, click to expand affiliations / ORCID
Bellott Daniel W
Whitehead Institute, Howard Hughes Medical Institute, & Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02142, USA.
Hughes Jennifer F
Whitehead Institute, Howard Hughes Medical Institute, & Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02142, USA.
Skaletsky Helen
Whitehead Institute, Howard Hughes Medical Institute, & Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02142, USA.
Brown Laura G
Whitehead Institute, Howard Hughes Medical Institute, & Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02142, USA.
Pyntikova Tatyana
Whitehead Institute, Howard Hughes Medical Institute, & Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02142, USA.
Cho Ting-Jan
Whitehead Institute, Howard Hughes Medical Institute, & Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02142, USA.
Koutseva Natalia
Whitehead Institute, Howard Hughes Medical Institute, & Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02142, USA.
Zaghlul Sara
Whitehead Institute, Howard Hughes Medical Institute, & Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02142, USA.
Graves Tina
The Genome Institute, Washington University School of Medicine, St. Louis, Missouri 63108, USA.
Rock Susie
The Genome Institute, Washington University School of Medicine, St. Louis, Missouri 63108, USA.
Kremitzki Colin
The Genome Institute, Washington University School of Medicine, St. Louis, Missouri 63108, USA.
Fulton Robert S
The Genome Institute, Washington University School of Medicine, St. Louis, Missouri 63108, USA.
Dugan Shannon
Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas 77030, USA.
Ding Yan
Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas 77030, USA.
Morton Donna
Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas 77030, USA.
Khan Ziad
Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas 77030, USA.
Lewis Lora
Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas 77030, USA.
Buhay Christian
Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas 77030, USA.
Wang Qiaoyan
Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas 77030, USA.
Watt Jennifer
Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas 77030, USA.
Holder Michael
Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas 77030, USA.
Lee Sandy
Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas 77030, USA.
Nazareth Lynne
Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas 77030, USA.
Alföldi Jessica
Whitehead Institute, Howard Hughes Medical Institute, & Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02142, USA.
Rozen Steve
Whitehead Institute, Howard Hughes Medical Institute, & Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02142, USA.
Muzny Donna M
Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas 77030, USA.
Warren Wesley C
The Genome Institute, Washington University School of Medicine, St. Louis, Missouri 63108, USA.
Gibbs Richard A
Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas 77030, USA.
Wilson Richard K
The Genome Institute, Washington University School of Medicine, St. Louis, Missouri 63108, USA.
Page David C
Whitehead Institute, Howard Hughes Medical Institute, & Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02142, USA.
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Article Info
Journal
Nature
Abbr.
Nature
ISSN
1476-4687
Published
2014-04-24
Pages
494-9
Language
English
Region
England
NLM ID
0410462
PMCID
PMC4139287
Subset
IM
Grants
Howard Hughes Medical Institute · United States
NCRR NIH HHS · P51 RR013986 · United States
NHGRI NIH HHS · U54 HG003079 · United States
NHGRI NIH HHS · U54 HG003273 · United States
Databases
GENBANK
FJ526999, FJ527000, FJ527001, FJ527002, FJ527003, FJ527004, FJ527005, FJ527006, FJ527007, FJ527008, FJ627275, FJ627276, FJ627278, FJ659845, FJ959389, GQ253467, GQ253468, GQ253469, GQ253470, GQ253471, GQ253472, GQ253473, GQ253474, GQ253475, GQ338825, GU304599, GU304600, GU304601, GU304602, GU304603, GU304606, GU304607, JF487792, JF487793, JF487794, JF487795, JF827151, JF827152, JN086997, JN585955, JN585956, JQ313990, JQ313991, JQ313992
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