کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5589752 | 1569826 | 2017 | 40 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Gene sequence variations and expression patterns of mitochondrial genes are associated with the adaptive evolution of two Gynaephora species (Lepidoptera: Lymantriinae) living in different high-elevation environments
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کلمات کلیدی
COX1–COX3QTPrrnL and rrnSASLRELOXPHOSqRT-PCRatp6 and atp8 - atp6 و atp8EF1α - EF1aamino acid - آمینو اسیدabove sea level - بالاتر از سطح دریاGene expression - بیان ژنbase pairs - جفت پایهOxidative phosphorylation - فسفوریلاسیون اکسیداتیوQinghai-Tibetan plateau - فلات چینگهای-تبتیpolymerase chain reaction - واکنش زنجیره ای پلیمرازquantitative real-time PCR - واکنش زنجیره ای پلیمراز واقعی در زمان واقعیPCR - واکنش زنجیرهٔ پلیمرازMitochondrial genome - ژنوم میتوکندریابیcob - کوب
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
ژنتیک
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The adaptive evolution of animals to high-elevation environments has been extensively studied in vertebrates, while few studies have focused on insects. Gynaephora species (Lepidoptera: Lymantriinae) are endemic to the Qinghai-Tibetan Plateau (QTP) and represent an important insect pest of alpine meadows. Here, we present a detailed comparative analysis of the mitochondrial genomes (mitogenomes) of two Gynaephora species inhabiting different high-elevation environments: G. alpherakii and G. menyuanensis. The results indicated that the general mitogenomic features (genome size, nucleotide composition, codon usage and secondary structures of tRNAs) were well conserved between the two species. All of mitochondrial protein-coding genes were evolving under purifying selection, suggesting that selection constraints may play a role in ensuring adequate energy production. However, a number of substitutions and indels were identified that altered the protein conformations of ATP8 and NAD1, which may be the result of adaptive evolution of the two Gynaephora species to different high-elevation environments. Levels of gene expression for nine mitochondrial genes in nine different developmental stages were significantly suppressed in G. alpherakii, which lives at the higher elevation (~Â 4800Â m above sea level), suggesting that gene expression patterns could be modulated by atmospheric oxygen content and environmental temperature. These results enhance our understanding of the genetic bases for the adaptive evolution of insects endemic to the QTP.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Gene - Volume 610, 30 April 2017, Pages 148-155
Journal: Gene - Volume 610, 30 April 2017, Pages 148-155
نویسندگان
Qi-Lin Zhang, Li Zhang, Tian-Xuan Zhao, Juan Wang, Qian-Hua Zhu, Jun-Yuan Chen, Ming-Long Yuan,