کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8645399 | 1569784 | 2018 | 27 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Expression of homing endonuclease gene and insertion-like element in sea anemone mitochondrial genomes: Lesson learned from Anemonia viridis
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کلمات کلیدی
ORFPGMMitogenomeActiniariaIGRNADH dehydrogenaseHoming endonuclease geneMitochondrial DNA - DNA میتوکندریاhEG - HEGhoming endonuclease - انتونوکراسی انتهاییGroup I intron - اینترانت گروه IInsertion sequence - توالی درجmtDNA - دیانای میتوکندریاییcytochrome oxidase - سیتوکروم اکسیدازopen reading frame - قاب خواندن بازIntergenic region - منطقه مصنوعی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
ژنتیک
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چکیده انگلیسی
The mitochondrial genomes of sea anemones are dynamic in structure. Invasion by genetic elements, such as self-catalytic group I introns or insertion-like sequences, contribute to sea anemone mitochondrial genome expansion and complexity. By using next generation sequencing we investigated the complete mtDNAs and corresponding transcriptomes of the temperate sea anemone Anemonia viridis and its closer tropical relative Anemonia majano. Two versions of fused homing endonuclease gene (HEG) organization were observed among the Actiniidae sea anemones; in-frame gene fusion and pseudo-gene fusion. We provided support for the pseudo-gene fusion organization in Anemonia species, resulting in a repressed HEG from the COI-884 group I intron. orfA, a putative protein-coding gene with insertion-like features, was present in both Anemonia species. Interestingly, orfA and COI expression were significantly up-regulated upon long-term environmental stress corresponding to low seawater pH conditions. This study provides new insights to the dynamics of sea anemone mitochondrial genome structure and function.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Gene - Volume 652, 30 April 2018, Pages 78-86
Journal: Gene - Volume 652, 30 April 2018, Pages 78-86
نویسندگان
Sylvia Ighem Chi, Ilona Urbarova, Steinar D. Johansen,