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![Characterization of the Mitochondrial Genome of the Luzon Hawk-Owl (Ninox philippensis) and The Phylogeny of Owls için kapak resmi Characterization of the Mitochondrial Genome of the Luzon Hawk-Owl (Ninox philippensis) and The Phylogeny of Owls için kapak resmi](/client/assets/d79c3e4af2b6d196/ctx/images/no_image.png)
Characterization of the Mitochondrial Genome of the Luzon Hawk-Owl (Ninox philippensis) and The Phylogeny of Owls
Başlık:
Characterization of the Mitochondrial Genome of the Luzon Hawk-Owl (Ninox philippensis) and The Phylogeny of Owls
Yazar:
Kayhani, Mary N., author.
ISBN:
9780438013476
Yazar Ek Girişi:
Fiziksel Tanımlama:
1 electronic resource (65 pages)
Genel Not:
Source: Masters Abstracts International, Volume: 57-06M(E).
Advisors: Hector C. Miranda Committee members: Mario G. Hollomon; Hyun-Ming Hwang; Shodimu-Emmanuel Olufemi.
Özet:
The whole mitochondrial genome of the Luzon Hawk-Owl Ninox philippensis was sequenced and characterized. The Luzon Hawk-Owl is a relatively rare owl found in the islands of Luzon, Samar and Leyte. In comparison with the published complete mitochondrial DNA sequence of the New Zealand Hawk-Owl Ninox novaeseelandiae, the structure and gene arrangement of complete genome of Ninox philippensis are similar. It is composed of 22 transfer RNAs, 13 protein-coding genes for the electron transport system, 2 ribosomal RNAs (rRNA) and one control region. However, the mitochondrial genome of Ninox philippensis differed from N. novaeseelandiae, and from most bird mitogenomes by having an eight 89-base tandem repeat cluster at the 3'-end of the control region. The repeat cluster added about 600 bp for a total of 16,938 bp, compared to the 16,222 bp of N. novaeseelandiae. This is the first report of tandem repeats for this genus and one of the few among birds. Sequence divergence based on aligned 4,370 bp between N. philippensis, and the reference taxa N. novaeseelandiae from New Zealand showed a genetic distance by 90.0 percent. Based on the molecular clock calibration of 2 percent mutation rate every 1 million years for mitochondrial genes, it can be deduced that the two species were separated by at least 5 million years.
Using 12 protein-coding genes of 14 other owls (Order Strigiformes) plus one parrot (Order Psittaciformes), a strongly supported phylogenetic analysis showed a monophyletic Ninox, a monophyletic Asio/Strix/Otus clade. At the base of this tree is the monophyletic Tyto/Phodilus clade belonging to the family Tytonidae.
Using the cytochrome subunit b (cytb) gene, the phylogenetic analysis of 10 Ninox from Asia and 1 Aegolius as outgroup, suggested that Ninox philippensis is allopatric to Ninox spilocephala, the sister taxa adjacent southern island of the Philippines. Philippine Ninox is a monophyletic clade, suggesting a single colonization event. The North Asian Ninox forms another monophyletic clade and the Australian-Indonesian Ninox clade form the larger clade. The Cytb distance value suggested the Luzon Hawk-Owl N. philippensis and Mindanao Hawk-Owl N. spilocephala differ by 5.0 percent, which supports the taxonomic splitting of the two populations into separate species.
Notlar:
School code: 0441
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Yer Numarası | Demirbaş Numarası | Shelf Location | Lokasyon / Statüsü / İade Tarihi |
---|---|---|---|
XX(692452.1) | 692452-1001 | Proquest E-Tez Koleksiyonu | Arıyor... |
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