General information
Corydoras lacrimostigmata (Tencatt, Britto & Pavanelli, 2014)  
   
Synonyms
-
IUCN Red List status (2014)
Not Reported
Habitat
-
Systematics
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Siluriformes; Callichthyidae.
Geographical distribution -
Occurrence -
Remarks Telomeric probe (TTAGGG)n showed uniform signals on telomeres of all chromosomes. Additional small telomeric probe detected on interstitial telomeric sites on submetacentric pair 17, which matches the location of a heterochromatic block.
Karyological information
Geographical area of study Barra Grande River (Ivaí basin-Upper Paraná River, Prudentópolis, PR, Brazil.
Source of chromosomes Kidney
Number of specimens with sex 18
Diploid chromosome number 58
Karyotype formula 22m+36sm
Fundamental arm number 116
Chromosome length -
Sex chromosome -
Chromosome staining/banding/FISH Pericentromeric heterochromatic blocks observed on metacentric pairs 2, 4, 6, and 11 and submetacentric pairs 14 and 19. Additionally, a small interstitial band detected on long arm of pair 17. FISH with 18S rDNA present at terminal region of short arm of submetacentric pairs 20 and 25, while 5S rDNA present at terminal end of long arm of metacentric pair 4.
Reference Patrícia Barbosa P, Pucci MB, Nogaroto V, Almeida MC, Artoni RF, Vicari MR (2017). Karyotype analysis of three species of Corydoras (Siluriformes: Callichthyidae) from southern Brazil: rearranged karyotypes and cytotaxonomy. Neotropical Ichthyology, 15(1): e160056.
Cross Link
Acknowledgment | Contact us | Disclaimer| FisOmics
Copyright © 2014 ICAR-National Bureau of Fish Genetic Resources, Lucknow.