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Karyological analysis of the shrimp Palaemon serratus (Decapoda: Palaemonidae)

Karyological analysis of the shrimp Palaemon serratus (Decapoda: Palaemonidae) Analysis of metaphases of Palaemon serratus (Pennant, 1777) revealed a diploid number of 2 n = 56 chromosomes with a karyotype composed of two large metacentric pairs, six subtelocentric pairs and twenty telocentric pairs. Four Ag-NORs and 45S rDNA signals were observed at the telomeres of two small telocentric chromosome pairs. Chromomycin A3 fluorochrome staining revealed GC-rich regions associated with Ag-NORs, and DAPI showed positive bright bands on centromeric or intercalary positions of subtelocentric and telocentric chromosomes. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Crustacean Biology Brill

Karyological analysis of the shrimp Palaemon serratus (Decapoda: Palaemonidae)

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References (40)

Publisher
Brill
Copyright
© The Crustacean Society. Published by Brill NV, Leiden
Subject
Systematics, Biogeography and Phylogeny
ISSN
0278-0372
eISSN
1937-240X
DOI
10.1163/1937240X-00002185
Publisher site
See Article on Publisher Site

Abstract

Analysis of metaphases of Palaemon serratus (Pennant, 1777) revealed a diploid number of 2 n = 56 chromosomes with a karyotype composed of two large metacentric pairs, six subtelocentric pairs and twenty telocentric pairs. Four Ag-NORs and 45S rDNA signals were observed at the telomeres of two small telocentric chromosome pairs. Chromomycin A3 fluorochrome staining revealed GC-rich regions associated with Ag-NORs, and DAPI showed positive bright bands on centromeric or intercalary positions of subtelocentric and telocentric chromosomes.

Journal

Journal of Crustacean BiologyBrill

Published: Jan 1, 2013

Keywords: Ag-NOR; chromosomes; Crustacea; Decapoda; FISH; Palaemon serratus

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