کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5589251 | 1569810 | 2017 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characterization and phylogenetic analysis of complete mitochondrial genomes for two desert cyprinodontoid fishes, Empetrichthys latos and Crenichthys baileyi
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کلمات کلیدی
tRNAGoodeidaeCytochrome c oxidase subunits I–IIIATPase subunits 6 and 8rRNAND1–ND6 and ND4LCyprinodontiformesatp6 and atp8 - atp6 و atp8Ribosomal RNA - RNA Ribosomaltransfer RNA - انتقال RNADesert - بیابانbase pairs - جفت پایهmtDNA - دیانای میتوکندریاییNADH dehydrogenase subunits 1–6 and 4L - زیربخشهای NADH dehydrogenase 1-6 و 4LConservation - زیستشناسی بقاFish - ماهیEndangered species - گونه های در معرض خطر
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
ژنتیک
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The Pahrump poolfish (Empetrichthys latos) and White River springfish (Crenichthys baileyi) are small-bodied teleost fishes (order Cyprinodontiformes) endemic to the arid Great Basin and Mojave Desert regions of western North America. These taxa survive as small, isolated populations in remote streams and springs and evolved to tolerate extreme conditions of high temperature and low dissolved oxygen. Both species have experienced severe population declines over the last 50-60Â years that led to some subspecies being categorized with protected status under the U.S. Endangered Species Act. Here we report the first sequencing of the complete mitochondrial DNA genomes for both E. l. latos and the moapae subspecies of C. baileyi. Complete mitogenomes of 16,546Â bp nucleotides were obtained from two E. l. latos individuals collected from introduced populations at Spring Mountain Ranch State Park and Shoshone Ponds Natural Area, Nevada, USA, while a single mitogenome of 16,537Â bp was sequenced for C. b. moapae. The mitogenomes of both species contain 13 protein-encoding genes, twenty-two tRNAs, and two rRNAs (12S and 18S) following the syntenic arrangement typical of Actinopterygiian fish mitogenomes, as well as D-loop control regions of 858Â bp for E. latos and 842Â bp for C. baileyi moapae. The two E. latos individuals exhibited only 0.0181% nucleotide sequence divergence across the entire mitogenome, implying little intraspecific mtDNA genetic variation. Comparative phylogenetic analysis of the poolfish and springfish mitochondrial genomes to available mitogenomes of other Cyprinodontoid fishes confirmed the close relationship of these oviparous Empetrichthys and Crenichthys genera to the viviparous goodeid fishes of central Mexico, and showed the combined clade of these fishes to be a sister group to the Profundulidae killifishes. Despite several significant life history and morphological differences between the Empetrichthyinae and Goodienae, estimates of evolutionary genetic distances using two partial regions of mtDNA point to inclusion of the Empetrichthys and Crenichthys genera within the family Goodeidae along with the goodeid fishes of central Mexico.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Gene - Volume 626, 30 August 2017, Pages 163-172
Journal: Gene - Volume 626, 30 August 2017, Pages 163-172
نویسندگان
Miguel Jimenez, Shawn C. Goodchild, Craig A. Stockwell, Sean C. Lema,