Sex Chromosome Evolution and Genomic Divergence in the Fish Hoplias malabaricus (Characiformes, Erythrinidae)

被引:43
作者
Sember, Alexandr [1 ]
Bertollo, Luiz A. C. [2 ]
Rab, Petr [1 ]
Yano, Cassia F. [2 ]
Hatanaka, Terumi [2 ]
de Oliveira, Ezequiel A. [2 ,3 ]
Cioffi, Marcelo de Bello [2 ]
机构
[1] Czech Acad Sci, Inst Anim Physiol & Genet, Lab Fish Genet, Libechov, Czech Republic
[2] Univ Fed Sao Carlos, Dept Genet & Evolucao, Sao Carlos, SP, Brazil
[3] Secretaria Estado Educ Mato Grosso SEDUC MT, Cuiaba, Brazil
基金
巴西圣保罗研究基金会;
关键词
fish cytogenetics; multiple sex chromosomes; sex-determining region; sex chromosome turnover; CGH; intraspecific variability; species complex; speciation; HOPLERYTHRINUS-UNITAENIATUS AGASSIZ; COMPARATIVE CYTOGENETICS; REPETITIVE DNA; MICROCHROMOSOME SYSTEM; KARYOTYPE EVOLUTION; SPECIES COMPLEX; Y-CHROMOSOMES; DIFFERENTIATION; REVEALS; IDENTIFICATION;
D O I
10.3389/fgene.2018.00071
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
The Erythrinidae family (Teleostei: Characiformes) is a small Neotropical fish group with a wide distribution throughout South America, where Hoplias malabaricus corresponds to the most widespread and cytogenetically studied taxon. This species possesses significant genetic variation, as well as huge karyotype diversity among populations, as reflected by its seven major karyotype forms (i.e., karyomorphs A-G) identified up to now. Although morphological differences in their bodies are not outstanding, H. malabaricus karyomorphs are easily identified by differences in 2n, morphology and size of chromosomes, as well as by distinct evolutionary steps of sex chromosomes development. Here, we performed comparative genomic hybridization (CGH) to analyse both the intra-and inter-genomic status in terms of repetitive DNA divergence among all but one (E) H. malabaricus karyomorphs. Our results indicated that they have close relationships, but with evolutionary divergences among their genomes, yielding a range of non-overlapping karyomorph-specific signals. Besides, male-specific regions were uncovered on the sex chromosomes, confirming their differential evolutionary trajectories. In conclusion, the hypothesis that H. malabaricus karyomorphs are result of speciation events was strengthened.
引用
收藏
页数:12
相关论文
共 100 条
[1]   Minute Y chromosomes and karyotype evolution in Madagascan iguanas (Squamata: Iguania: Opluridae) [J].
Altmanova, Marie ;
Rovatsos, Michail ;
Kratochvil, Lukas ;
Pokorna, Martina Johnson .
BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY, 2016, 118 (03) :618-633
[2]  
[Anonymous], 2015, Fish cytogenetic techniques: ray-fin fishes and Chondrichthyans, DOI DOI 10.1201/B18534-17
[3]  
Arai R., 2011, FISH KARYOTYPES CHEC
[4]   Sex Determination: Why So Many Ways of Doing It? [J].
Bachtrog, Doris ;
Mank, Judith E. ;
Peichel, Catherine L. ;
Kirkpatrick, Mark ;
Otto, Sarah P. ;
Ashman, Tia-Lynn ;
Hahn, Matthew W. ;
Kitano, Jun ;
Mayrose, Itay ;
Ming, Ray ;
Perrin, Nicolas ;
Ross, Laura ;
Valenzuela, Nicole ;
Vamosi, Jana C. .
PLOS BIOLOGY, 2014, 12 (07) :1-13
[5]   A ZZ/ZW microchromosome system in the spiny softshell turtle, Apalone spinifera, reveals an intriguing sex chromosome conservation in Trionychidae [J].
Badenhorst, Daleen ;
Stanyon, Roscoe ;
Engstrom, Tag ;
Valenzuela, Nicole .
CHROMOSOME RESEARCH, 2013, 21 (02) :137-147
[6]   The X1X2Y sex chromosome system in the fish Hoplias malabaricus.: II.: Meiotic analyses [J].
Bertollo, LAC ;
Mestriner, CA .
CHROMOSOME RESEARCH, 1998, 6 (02) :141-147
[7]   A biodiversity approach in the neotropical Erythrinidae fish, Hoplias malabaricus.: Karyotypic survey, geographic distribution of cytotypes and cytotaxonomic considerations [J].
Bertollo, LAC ;
Born, GG ;
Dergam, JA ;
Fenocchio, AS ;
Moreira, O .
CHROMOSOME RESEARCH, 2000, 8 (07) :603-613
[8]   The X1X2Y sex chromosome system in the fish Hoplias malabaricus .1. G-, C- and chromosome replication banding [J].
Bertollo, LAC ;
Fontes, MS ;
Fenocchio, AS ;
Cano, J .
CHROMOSOME RESEARCH, 1997, 5 (07) :493-499
[9]  
Bertollo LAC, 2015, Fish cytogenetic techniques ray-fin fishes and chondrichthyans, P21, DOI [DOI 10.1201/B18534-4, 10.1201/b18534]
[10]  
Bertollo Luiz Antonio Carlos, 2007, P195