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Deviatiiarov R, Nagai H, Ismagulov G, Stupina A, Wada K, Ide S, Toji N, Zhang H, Sukparangsi W, Intarapat S, Gusev O, Sheng G. Dosage compensation of Z sex chromosome genes in avian fibroblast cells. Genome Biol 2023; 24:213. [PMID: 37730643 PMCID: PMC10510239 DOI: 10.1186/s13059-023-03055-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 09/08/2023] [Indexed: 09/22/2023] Open
Abstract
In birds, sex is genetically determined; however, the molecular mechanism is not well-understood. The avian Z sex chromosome (chrZ) lacks whole chromosome inactivation, in contrast to the mammalian chrX. To investigate chrZ dosage compensation and its role in sex specification, we use a highly quantitative method and analyze transcriptional activities of male and female fibroblast cells from seven bird species. Our data indicate that three fourths of chrZ genes are strictly compensated across Aves, similar to mammalian chrX. We also present a complete list of non-compensated chrZ genes and identify Ribosomal Protein S6 (RPS6) as a conserved sex-dimorphic gene in birds.
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Affiliation(s)
- Ruslan Deviatiiarov
- International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
- Regulatory Genomics Research Center, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russian Federation
- Graduate School of Medicine, Juntendo University, Tokyo, Japan
- Life Improvement by Future Technologies Institute, Moscow, Russian Federation
| | - Hiroki Nagai
- International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Galym Ismagulov
- International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Anastasia Stupina
- Regulatory Genomics Research Center, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russian Federation
| | - Kazuhiro Wada
- Department of Biological Sciences, Faculty of Science, Hokkaido University, Sapporo, Japan
| | - Shinji Ide
- Kumamoto City Zoo and Botanical Garden, Kumamoto, Japan
| | - Noriyuki Toji
- Department of Biological Sciences, Faculty of Science, Hokkaido University, Sapporo, Japan
| | - Heng Zhang
- Graduate School of Life Science, Hokkaido University, Sapporo, Japan
| | - Woranop Sukparangsi
- Department of Biology, Faculty of Science, Burapha University, Chonburi, Thailand
| | | | - Oleg Gusev
- Regulatory Genomics Research Center, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russian Federation.
- Graduate School of Medicine, Juntendo University, Tokyo, Japan.
- Life Improvement by Future Technologies Institute, Moscow, Russian Federation.
| | - Guojun Sheng
- International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan.
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