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Kretschmer R, Santos de Souza M, Gunski RJ, Del Valle Garnero A, de Freitas TRO, Zefa E, Toma GA, Cioffi MDB, Herculano Corrêa de Oliveira E, O'Connor RE, Griffin DK. Understanding the chromosomal evolution in cuckoos (Aves, Cuculiformes): a journey through unusual rearrangements. Genome 2024. [PMID: 38346285 DOI: 10.1139/gen-2023-0101] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
The Cuculiformes are a family of over 150 species that live in a range of habitats, such as forests, savannas, and deserts. Here, bacterial artificial chromosome (BAC) probes (75 from chicken and 14 from zebra finch macrochromosomes 1-10 +ZW and for microchromosomes 11-28 (except 16)) were used to investigate chromosome homologies between chicken and the squirrel cuckoo (Piaya cayana). In addition, repetitive DNA probes were applied to characterize the chromosome organization and to explore the role of these sequences in the karyotype evolution of P. cayana. We also applied BAC probes for chicken chromosome 17 and Z to the guira cuckoo (Guira guira) to test whether this species has an unusual Robertsonian translocation between a microchromosome and the Z chromosome, recently described in the smooth-billed ani (Crotophaga ani). Our results revealed extensive chromosome reorganization with inter- and intrachromosomal rearrangements in P. cayana, including a conspicuous chromosome size and heterochromatin polymorphism on chromosome pair 20. Furthermore, we confirmed that the Z-autosome Robertsonian translocation found in C. ani is also found in G. guira, not P. cayana. These findings suggest that this translocation occurred prior to the divergence between C. ani and G. guira, but after the divergence with P. cayana.
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Affiliation(s)
- Rafael Kretschmer
- School of Biosciences, University of Kent, Canterbury, Kent, CT2 7NJ, UK
- Departamento de Ecologia, Zoologia e Genética, Instituto de Biologia, Universidade Federal de Pelotas, Pelotas 96010-900, RS, Brazil
| | - Marcelo Santos de Souza
- Laboratório de Diversidade Genética Animal, Universidade Federal do Pampa, São Gabriel, Rio Grande do Sul 97300-162, Brazil
| | - Ricardo José Gunski
- Laboratório de Diversidade Genética Animal, Universidade Federal do Pampa, São Gabriel, Rio Grande do Sul 97300-162, Brazil
| | - Analía Del Valle Garnero
- Laboratório de Diversidade Genética Animal, Universidade Federal do Pampa, São Gabriel, Rio Grande do Sul 97300-162, Brazil
| | | | - Edison Zefa
- Departamento de Ecologia, Zoologia e Genética, Instituto de Biologia, Universidade Federal de Pelotas, Pelotas 96010-900, RS, Brazil
| | - Gustavo Akira Toma
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, São Paulo 13565-905, Brazil
| | - Marcelo de Bello Cioffi
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, São Paulo 13565-905, Brazil
| | - Edivaldo Herculano Corrêa de Oliveira
- Laboratório de Cultura de Tecidos e Citogenética, SAMAM, Instituto Evandro Chagas, Ananindeua, Pará 67030-000, Brazil
- Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, Belém, Pará 66075-110, Brazil
| | - Rebecca E O'Connor
- School of Biosciences, University of Kent, Canterbury, Kent, CT2 7NJ, UK
| | - Darren K Griffin
- School of Biosciences, University of Kent, Canterbury, Kent, CT2 7NJ, UK
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