| Complete mitochondrial genomes reveal robust phylogenetic signals and evidence of positive selection in horseshoe bats | |
| Zhang, Lin; Sun, Keping1; Csorba, Gabor2; Hughes, Alice Catherine3; Jin, Longru; Xiao, Yanhong; Feng, Jiang4 | |
| 2021 | |
| Source Publication | BMC ECOLOGY AND EVOLUTION
 |
| ISSN | 2730-7182 |
| Volume | 21Issue:xPages:- |
| Abstract | Background In genus Rhinolophus, species in the Rhinolophus philippinensis and R. macrotis groups are unique because the horseshoe bats in these group have relatively low echolocation frequencies and flight speeds compared with other horseshoe bats with similar body size. The different characteristics among bat species suggest particular evolutionary processes may have occurred in this genus. To study the adaptive evidence in the mitochondrial genomes (mitogenomes) of rhinolophids, especially the mitogenomes of the species with low echolocation frequencies, we sequenced eight mitogenomes and used them for comparative studies of molecular phylogeny and adaptive evolution. Results Phylogenetic analysis using whole mitogenome sequences produced robust results and provided phylogenetic signals that were better than those obtained using single genes. The results supported the recent establishment of the separate macrotis group. The signals of adaptive evolution discovered in the Rhinolophus species were tested for some of the codons in two genes (ND2 and ND6) that encode NADH dehydrogenases in oxidative phosphorylation system complex I. These genes have a background of widespread purifying selection. Signals of relaxed purifying selection and positive selection were found in ND2 and ND6, respectively, based on codon models and physicochemical profiles of amino acid replacements. However, no pronounced overlap was found for non-synonymous sites in the mitogenomes of all the species with low echolocation frequencies. A signal of positive selection for ND5 was found in the branch-site model when R. philippinensis was set as the foreground branch. Conclusions The mitogenomes provided robust phylogenetic signals that were much more informative than the signals obtained using single mitochondrial genes. Two mitochondrial genes that encoding proteins in the oxidative phosphorylation system showed some evidence of adaptive evolution in genus Rhinolophus and the positive selection signals were tested for ND5 in R. philippinensis. These results indicate that mitochondrial protein-coding genes were targets of adaptive evolution during the evolution of Rhinolophus species, which might have contributed to a diverse range of acoustic adaptations in this genus. |
| Keyword | Mitogenome Rhinolophus Comparative analysis Positive selection |
| Subject Area | Environmental Sciences & Ecology ; Evolutionary Biology ; Genetics & Heredity |
| DOI | 10.1186/s12862-021-01926-2 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000714365100001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/12370 |
| Collection | 2012年后新成立研究组 |
| Affiliation | 1.Northeast Normal Univ, Jilin Prov Key Lab Anim Resource Conservat & Util, Changchun 130117, Peoples R China 2.Minist Educ, Key Lab Vegetat Ecol, Changchun, Peoples R China 3.Hungarian Nat Hist Museum, Dept Zool, Budapest, Hungary 4.Chinese Acad Sci, Ctr Integrat Conservat, Xishuangbanna Trop Bot Garden, Menglun 666303, Yunnan, Peoples R China 5.Jilin Agr Univ, Coll Life Sci, Changchun 130118, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, Lin,Sun, Keping,Csorba, Gabor,et al. Complete mitochondrial genomes reveal robust phylogenetic signals and evidence of positive selection in horseshoe bats[J]. BMC ECOLOGY AND EVOLUTION,2021,21(x):-. |
| APA | Zhang, Lin.,Sun, Keping.,Csorba, Gabor.,Hughes, Alice Catherine.,Jin, Longru.,...&Feng, Jiang.(2021).Complete mitochondrial genomes reveal robust phylogenetic signals and evidence of positive selection in horseshoe bats.BMC ECOLOGY AND EVOLUTION,21(x),-. |
| MLA | Zhang, Lin,et al."Complete mitochondrial genomes reveal robust phylogenetic signals and evidence of positive selection in horseshoe bats".BMC ECOLOGY AND EVOLUTION 21.x(2021):-. |
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