Reference health
First chromosomal analysis of Gymnorhamphichthys britskii: the remarkable lowest diploid value within the family Rhamphichthyidae (Gymnotiformes)
26/26 checkable references clean · checked 2026-07-22
Every reference with a DOI in the deposited reference list resolved to a known work in Crossref or DataCite at the dated check, and none carried a retraction, withdrawal, or removal notice.
7 without a DOI — not checked. A reference deposited without a DOI is never matched by title or guessed at; it stays outside the checked set, and this line discloses that.
The 26 checked references that resolve
resolves10.1007/s004120050428
Sex chromosome evolution in fish: the formation of the neo-Y chromosome in Eigenmannia (Gymnotiformes)
resolves10.1023/A:1009287630301
Sex chromosome evolution in fish. II. Second occurrence of an X1X2Y sex chromosome system in Gymnotiformes
resolves10.1089/zeb.2016.1383
The Karyotype of
<i>Microsternarchus aff. bilineatus</i>
: A First Case of Y Chromosome Degeneration in Gymnotiformes
resolves10.3389/fgene.2018.00081
Karyotypic Diversity and Evolution in a Sympatric Assemblage of Neotropical Electric Knifefish
resolves10.1007/s11160-010-9196-0
Chromosomal characterization of two species of genus Steatogenys (Gymnotiformes: Rhamphichthyoidea: Steatogenini) from the Amazon basin: sex chromosomes and correlations with Gymnotiformes phylogeny
resolves10.1643/CI-10-154
A New Species of Gymnorhamphichthys (Gymnotiformes: Rhamphichthyidae) from the Paraná–Paraguay Basin
resolves10.1508/cytologia.75.463
System of Multiple Sex Chromosomes in Eigenmannia trilineata Lopez & Castello, 1966 (Sternopygidae, Gymnotiformes) from Iguatemi River Basin, MS, Brazil
resolves10.1089/zeb.2017.1432
Comparative Cytogenetics of the Black Ghost Knifefish (Gymnotiformes: Apteronotidae): Evidence of Chromosomal Fusion and Pericentric Inversions in Karyotypes of Two
<i>Apteronotus</i>
Species
resolves10.1515/biolog-2017-0071
Chromosomal characteristics of rDNA in a conserved karyotype of two Sternopygus macrurus (Gymnotiformes: Sternopygidae) populations from upper Paraná River basin
resolves10.1080/00087114.1998.10797414
High intraspecific karyological conservation in four species of<i>Gymnotus</i>(Pisces: Gymnotiformes) from Southeastern Brazilian basins
resolves10.1159/000354832
Twenty Years of Physical Mapping of Major Ribosomal RNA Genes across the Teleosts: A Review of Research
resolves10.1111/j.1095-8649.2000.tb02224.x
The use of clove oil as an anaesthetic and method for sampling intertidal rockpool fishes
resolves10.1007/s10709-004-2039-y
Mapping of the 18S and 5S ribosomal RNA genes in the fish Prochilodus argenteus Agassiz, 1829 (Characiformes, Prochilodontidae)
resolves10.1007/BF01953855
Controlled silver-staining of nucleolus organizer regions with a protective colloidal developer: a 1-step method
resolves10.1089/zeb.2016.1281
First Cytogenetic Description of
<i>Microsternarchus bilineatus</i>
(Gymnotiformes: Hypopomidae) from Negro River (Brazilian Amazon)
resolves10.1590/S1676-06032007000300020
Diversidade da ictiofauna do Alto Rio Paraná: composição atual e perspectivas futuras
resolves10.1590/S1415-47572008000200012
Karyotypic differentiation through chromosome fusion and number reduction in Imparfinis hollandi (Ostariophysi, Heptapteridae)
resolves10.1023/A:1009216030316
Chromosomal Localization of 5S rDNA Genes in Leporinus Fish (Anostomidae, Characiformes)
resolves10.3897/compcytogen.v6i1.1752
First record of supernumerary (B) chromosomes in electric fish (Gymnotiformes) and the karyotype structure of three species of the same order from the upper Paraná River basin
resolves10.1080/01650527609360496
On the species of Gymnorhamphichthys Ellis, 1912, translucent sand‐dwelling Gymnotid fishes from South America (Pisces, Cypriniformes, Gymnotoidei)
resolves10.1073/pnas.83.9.2934
Cytogenetic analysis using quantitative, high-sensitivity, fluorescence hybridization.
resolves10.1007/s10641-005-2144-5
An X1X1X2X2/X1X2Y multiple sex chromosome system in a new speciesof the genus Gymnotus (Pisces, Gymnotiformes)
resolves10.1089/zeb.2013.0966
New Approach Data in Electric Fish (Teleostei:
<i>Gymnotus</i>
): Sex Chromosome Evolution and Repetitive DNA
resolves10.3897/compcytogen.v7i4.4366
Karyotypic similarities between two species of Rhamphichthys (Rhamphichthyidae, Gymnotiformes) from the Amazon basin
resolves10.1016/0014-4827(72)90558-7
A simple technique for demonstrating centromeric heterochromatin
The 7 references without a DOI — listed, not checked
no DOI — not checkedSpecies diversity and phylogenetic systematics of American knifefishes (Gymnotiformes, Teleostei)
no DOI — not checkedref2
no DOI — not checkedCytotaxonomic considerations on Hoplias lacerdae (Pisces, Erythrinidade)
no DOI — not checkedref14
no DOI — not checkedref16
no DOI — not checkedPeixes da planície de inundação do alto rio Paraná e áreas adjacentes: revised, annotated and updated
no DOI — not checkedref29
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