PMID- 30499043 OWN - NLM STAT- MEDLINE DCOM- 20190710 LR - 20200309 IS - 1573-6849 (Electronic) IS - 0967-3849 (Linking) VI - 26 IP - 4 DP - 2018 Dec TI - Distribution of CR1-like transposable element in woodpeckers (Aves Piciformes): Z sex chromosomes can act as a refuge for transposable elements. PG - 333-343 LID - 10.1007/s10577-018-9592-1 [doi] AB - Birds have relatively few repetitive sequences compared to other groups of vertebrates; however, the members of order Piciformes (woodpeckers) have more of these sequences, composed mainly of transposable elements (TE). The TE most often found in birds is a retrotransposon chicken repeat 1 (CR1). Piciformes lineages were subjected to an expansion of the CR1 elements, carrying a larger fraction of transposable elements. This study compared patterns of chromosome distribution among five bird species, through chromosome mapping of the CR1 sequence and reconstructed their phylogenetic tree. We analyzed several members of Piciformes (Colaptes campestris, Colaptes melanochloros, Melanerpes candidus, and Veniliornis spilogaster), as well as Galliformes (Gallus gallus). Gallus gallus is the species with which most genomic and hence cytogenetic studies have been performed. The results showed that CR1 sequences are a monophyletic group and do not depend on their hosts. All species analyzed showed a hybridization signal by fluorescence in situ hybridization (FISH). In all species, the chromosomal distribution of CR1 was not restricted to heterochromatin regions in the macrochromosomes, principally pair 1 and the Z sex chromosome. Accumulation in the Z sex chromosomes can serve as a refuge for transposable elements. These results highlight the importance of transposable elements in host genomes and karyotype evolution. FAU - Bertocchi, Natasha Avila AU - Bertocchi NA AUID- ORCID: 0000-0002-8880-5967 AD - Programa de Pos-graduacao em Genetica e Biologia Molecular, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, 91501-970, Brazil. bertoccinatasha@gmail.com. FAU - de Oliveira, Thays Duarte AU - de Oliveira TD AD - Programa de Pos-graduacao em Biologia Animal, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, 91540-000, Brazil. FAU - Del Valle Garnero, Analia AU - Del Valle Garnero A AD - Programa de Pos-graduacao em Ciencias Biologicas, Universidade Federal do Pampa (Unipampa), Sao Gabriel, Rio Grande do Sul, 97300-000, Brazil. AD - Laboratorio de Diversidade Genetica Animal, Universidade Federal do Pampa (Unipampa), Sao Gabriel, Rio Grande do Sul, 97300-000, Brazil. FAU - Coan, Rafael Luiz Buogo AU - Coan RLB AD - Departamento de Morfologia, Laboratorio Genomica Integrativa, Universidade Estadual Paulista (UNESP), Botucatu, Sao Paulo, 18618-689, Brazil. FAU - Gunski, Ricardo Jose AU - Gunski RJ AD - Programa de Pos-graduacao em Ciencias Biologicas, Universidade Federal do Pampa (Unipampa), Sao Gabriel, Rio Grande do Sul, 97300-000, Brazil. AD - Laboratorio de Diversidade Genetica Animal, Universidade Federal do Pampa (Unipampa), Sao Gabriel, Rio Grande do Sul, 97300-000, Brazil. FAU - Martins, Cesar AU - Martins C AD - Departamento de Morfologia, Laboratorio Genomica Integrativa, Universidade Estadual Paulista (UNESP), Botucatu, Sao Paulo, 18618-689, Brazil. FAU - Torres, Fabiano Pimentel AU - Torres FP AD - Programa de Pos-graduacao em Ciencias Biologicas, Universidade Federal do Pampa (Unipampa), Sao Gabriel, Rio Grande do Sul, 97300-000, Brazil. AD - Laboratorio de Diversidade Genetica Animal, Universidade Federal do Pampa (Unipampa), Sao Gabriel, Rio Grande do Sul, 97300-000, Brazil. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20181129 PL - Netherlands TA - Chromosome Res JT - Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology JID - 9313452 RN - 0 (DNA Transposable Elements) RN - 0 (Retroelements) SB - IM MH - Animals MH - Birds/*genetics MH - Chickens/genetics MH - Chromosome Mapping MH - *DNA Transposable Elements MH - Phylogeny MH - Repetitive Sequences, Nucleic Acid/*genetics MH - Retroelements MH - *Sex Chromosomes OTO - NOTNLM OT - Birds OT - FISH OT - Genome organization OT - Genomes OT - Retrotransposon OT - Sex chromosomes EDAT- 2018/12/01 06:00 MHDA- 2019/07/11 06:00 CRDT- 2018/12/01 06:00 PHST- 2018/08/02 00:00 [received] PHST- 2018/11/13 00:00 [accepted] PHST- 2018/10/14 00:00 [revised] PHST- 2018/12/01 06:00 [pubmed] PHST- 2019/07/11 06:00 [medline] PHST- 2018/12/01 06:00 [entrez] AID - 10.1007/s10577-018-9592-1 [pii] AID - 10.1007/s10577-018-9592-1 [doi] PST - ppublish SO - Chromosome Res. 2018 Dec;26(4):333-343. doi: 10.1007/s10577-018-9592-1. Epub 2018 Nov 29.