English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Cytogenetic studies involving conventional air drying techniques, Giemsa staining,constitutive heterochromatin analysis and silver staining were carried out on T. spegazzini from three hydrographic basins of the northwest of Argentina. In spite of colour and subtle morphological differencies the three populations showed the same karyologycal formulae, 54 biarmed chromosomes, 42 M and 12 SM pairs, NF = 108, with a very conspicuous first metacentric pair. The NORs were located at the terminal region on the short arm on a single submetacentric medium sized pair. The C banding analysis showed the presence of small blocks in pericentromeric position in an single metacentric large chromosome pair (3° o 4°). The species showed a conservative karyotype, with plesiomorphic condition for chromosome number and NOR bands.

caryologia

Chromosome characterization of <i>Trichotnycterus spegazzini</i> (Siluriformes, Trichomycteridae) from three hydrographic basins of the Northwest of Argentina

Chromosome characterization of Trichotnycterus spegazzini (Siluriformes, Trichomycteridae) from three hydrographic basins of the Northwest of Argentina