| 传粉和非传粉榕小蜂线粒体基因组进化差异 |
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| 引用本文： | 王建霞,周怡,信召哲,赵丹,肖金花,黄大卫. 传粉和非传粉榕小蜂线粒体基因组进化差异[J]. 昆虫学报, 2021, 64(4): 479-489. DOI: 10.16380/j.kcxb.2021.04.007 |
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| 作者姓名： | 王建霞 周怡 信召哲 赵丹 肖金花 黄大卫 |
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| 作者单位： | .(南开大学生命科学学院昆虫学研究所, 天津 300071) |
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| 摘 要： | [目的]目前关于榕小蜂类群的线粒体基因组报道很少,本研究旨在探讨传粉和非传粉榕小蜂两个群体的线粒体基因组的进化差异.[方法]以15种榕小蜂的线粒体基因组(其中11种的线粒体基因组为新测定)数据为基础,采用比较线粒体基因组学方法,分析榕小蜂的线粒体基因组序列和进化特征.[结果]本研究新测定的11个榕小蜂物种的近全长线粒体...
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| 关 键 词： | 榕小蜂 线粒体基因组 基因重排 核苷酸多态性 纯化选择 氨基酸替换 |
Differences in the evolution of mitochondrial genome between pollinating and non-pollinating fig wasps(In English) |
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| WANG Jian-Xia,ZHOU Yi,XIN Zhao-Zhe,ZHAO Dan,XIAO Jin-Hua,HUANG Da-Wei. Differences in the evolution of mitochondrial genome between pollinating and non-pollinating fig wasps(In English)[J]. Acta Entomologica Sinica, 2021, 64(4): 479-489. DOI: 10.16380/j.kcxb.2021.04.007 |
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| Authors: | WANG Jian-Xia ZHOU Yi XIN Zhao-Zhe ZHAO Dan XIAO Jin-Hua HUANG Da-Wei |
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| Affiliation: | (Institute of Entomology, College of Life Sciences, Nankai University, Tianjin 300071, China) |
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| Abstract: | 【Aim】 At present, there are few reports on the mitochondrial genomes of fig wasps. The purpose of this study is to explore whether there are some differences in the evolution of mitochondrial genome (mitogenome) between pollinating fig wasps (PFWs) and non-pollinating fig wasps (NPFWs). 【Methods】 Based on the mitogenomes from 15 fig wasp species, of which the mitogenomes of 11 species were newly determined, we used the comparative mitochondrial genomic method to analyze the sequence and evolutionary characteristics of the mitogenomes of fig wasps. 【Results】 The length of the mitogenomes of 11 fig wasps newly determined ranges from 12 768 to 17 060 bp, and the AT content in the 11 mitogenomes is more than 80%. The AT-skew is negative and the GC-skew is positive in most species except for the non-pollinating fig wasp Philotrypesis tridentata. Frequent mitochondrial gene rearrangement occurs in fig wasps, which may be valuable for phylogenetic analysis of the species. Further analysis of selection pressure indicates that the ω ratios of protein-coding genes (PCGs) in mitogenomes of fig wasps are far less than 1, suggesting that these genes have experienced purifying selection. However, most of the genes in PFWs may have accumulated more non synonymous mutations than those in NPFWs. Furthermore, compared with the NPFWs, the mitogenomes of PFWs have more gene rearrangements, and higher nucleotide diversity and amino acid substitution rate. 【Conclusion】 The mitogenome evolution of PFWs is faster than that of NPFWs, which may be related to the significantly different lifestyles or evolutionary histories of the two groups. |
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| Keywords: | Fig wasps mitochondrial genome gene rearrangement nucleotide diversity purifying selection amino acid substitution |
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