Karyotypes of Gymnarchus Niloticus Cuvier and Pollymyrus Petricolous Daget(Osteoglossiformes) from Oluwa river,Ondo state ,Nigeria
ix, 57pages
Tallennettuna:
| Päätekijä: | |
|---|---|
| Aineistotyyppi: | Opinnäyte |
| Kieli: | englanti |
| Julkaistu: |
zoology,Obafemi Awolowo University
2023
|
| Aiheet: | |
| Linkit: | https://ir.oauife.edu.ng/123456789/5403 |
| Tagit: |
Lisää tagi
Ei tageja, Lisää ensimmäinen tagi!
|
| _version_ | 1810764580120428544 |
|---|---|
| author | Jegede, Oladele Ilesanmi |
| author_facet | Jegede, Oladele Ilesanmi |
| author_sort | Jegede, Oladele Ilesanmi |
| collection | DSpace |
| description | ix, 57pages |
| format | Thesis |
| id | oai:ir.oauife.edu.ng:123456789-5403 |
| institution | My University |
| language | English |
| publishDate | 2023 |
| publisher | zoology,Obafemi Awolowo University |
| record_format | dspace |
| spelling | oai:ir.oauife.edu.ng:123456789-54032023-05-13T18:13:11Z Karyotypes of Gymnarchus Niloticus Cuvier and Pollymyrus Petricolous Daget(Osteoglossiformes) from Oluwa river,Ondo state ,Nigeria Jegede, Oladele Ilesanmi Karyotypes Gymnarchus Niloticus Cucier Pollimyrus Petricolus Daget ix, 57pages ABSTRACT The karyotypes of Gymnarchus niloticus Cuvier and Pollimyrus petricolus Daget from Oluwa River, Okitipupa, Ondo State were investigated to determine their diploid numbers and characteristics. This was with a view to assessing the chromosomal pattern and evolution of karyotypes in the order Osteoglossiformes. Mitotic cells obtained from kidney and gill tissues of G. niloticus and P. petricolus were arrested at metaphase stage by injecting the specimens intraperitoneally with 0.05% colchicines. Hypotonic treatment was in 0.075 M potassium chloride, while prepared slides were stained with 8% Giemsa in 6.8 pH phosphate buffer. The slides were viewed under a binocular light microscope (Leical Gallen III model), and the pictures of cells with good metaphase spread obtained using a digital camera (AmScope MT version 3.0.0.1) mounted on the microscope. Chromosome arms were measured from enlarged computer prints of the best metaphase spread. Karyotyping was made from photo prints of the digital photographs and idiogram plotted using Microsoft Office Excel. G. niloticus had a karyotype of 2n = 54; 24m+20sm+10sta (FN = 98), while a karyotype of 2n = 48; 10m+18sm+20sta (FN = 76) was recorded for P. petricolus. A tetraploid cell (4n = 96) was found in P. petricolus. This study concluded that the karyotype obtained for G. niloticus, provided a cytogenetic basis for the separation of G. niloticus from the family Mormyridae into a separate family, the Gymnarchidae. 2023-05-13T16:54:25Z 2023-05-13T16:54:25Z 2013 Thesis Jegede,O.I.(2013). Karyotypes of Gymnarchus Niloticus Cuvier and Pollymyrus Petricolous Daget(Osteoglossiformes) from Oluwa river,Ondo state ,Nigeria. Obafemi Awolowo University https://ir.oauife.edu.ng/123456789/5403 en application/pdf zoology,Obafemi Awolowo University |
| spellingShingle | Karyotypes Gymnarchus Niloticus Cucier Pollimyrus Petricolus Daget Jegede, Oladele Ilesanmi Karyotypes of Gymnarchus Niloticus Cuvier and Pollymyrus Petricolous Daget(Osteoglossiformes) from Oluwa river,Ondo state ,Nigeria |
| title | Karyotypes of Gymnarchus Niloticus Cuvier and Pollymyrus Petricolous Daget(Osteoglossiformes) from Oluwa river,Ondo state ,Nigeria |
| title_full | Karyotypes of Gymnarchus Niloticus Cuvier and Pollymyrus Petricolous Daget(Osteoglossiformes) from Oluwa river,Ondo state ,Nigeria |
| title_fullStr | Karyotypes of Gymnarchus Niloticus Cuvier and Pollymyrus Petricolous Daget(Osteoglossiformes) from Oluwa river,Ondo state ,Nigeria |
| title_full_unstemmed | Karyotypes of Gymnarchus Niloticus Cuvier and Pollymyrus Petricolous Daget(Osteoglossiformes) from Oluwa river,Ondo state ,Nigeria |
| title_short | Karyotypes of Gymnarchus Niloticus Cuvier and Pollymyrus Petricolous Daget(Osteoglossiformes) from Oluwa river,Ondo state ,Nigeria |
| title_sort | karyotypes of gymnarchus niloticus cuvier and pollymyrus petricolous daget osteoglossiformes from oluwa river ondo state nigeria |
| topic | Karyotypes Gymnarchus Niloticus Cucier Pollimyrus Petricolus Daget |
| url | https://ir.oauife.edu.ng/123456789/5403 |
| work_keys_str_mv | AT jegedeoladeleilesanmi karyotypesofgymnarchusniloticuscuvierandpollymyruspetricolousdagetosteoglossiformesfromoluwariverondostatenigeria |