Abstract
Chromosomes of Perna viridis were characterized by karyotype analysis, C-banding and nucleolus organizer regions (NORs). The diploid chromosome number was confirmed as 30 and the karyotype is composed of ten metacentric and five submetacentric chromosome pairs. Constitutive heterochromatin blocks were found on all chromosomal pairs except chromosomal pair 15, which showed uniform staining throughout the entire chromosomes. Silver staining revealed nucleolus organizer regions on telomeric region of four chromosomal pairs, viz. 1, 3, 7 and 11. This is the first comprehensive study undertaken on chromosomes of Perna viridis.
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Acknowledgements
We are grateful to the Council of Scientific and Industrial Research, New Delhi, Director of the National Institute of Oceanography, India for providing us with the necessary facilities to carry out the present study. The Department of Biotechnology (DBT), New Delhi, supports this study financially. This is National Institute of Oceanography’s contribution.
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Communicated by S.W.A. Naqvi.
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Muhammed Zafar Iqbal, A.N., Khan, M.S. & Goswami, U. Cytogenetic studies in green mussel, Perna viridis (Mytiloida: Pteriomorphia), from West Coast of India. Mar Biol 153, 987–993 (2008). https://doi.org/10.1007/s00227-007-0870-2
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DOI: https://doi.org/10.1007/s00227-007-0870-2