Complete nucleotide sequence of the mitochondrial genome of Schlegel's tree frog Rhacophorus schlegelii (family Rhacophoridae):: duplicated control regions and gene rearrangements
Complete nucleotide sequence of the mitochondrial genome of Schlegel's tree frog Rhacophorus schlegelii (family Rhacophoridae):: duplicated control regions and gene rearrangements
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DOI：
10.1266/ggs.80.213
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发表时间：
2005-06-01
影响因子：
1.1
通讯作者：
Sumida, M
中科院分区：
文献类型：
--
作者：
Sano, N;Kurabayashi, A;Sumida, M
测定了许氏树蛙（Rhacophorusschlegelii）线粒体DNA的全序列（21, 359 bp）。该基因组的基因含量、核苷酸组成和密码子使用与脊椎动物的典型基因组相一致。但是，Rh。Schlegelii的基因组异常大，这是由于包含两个控制区以及在这些区域中积累了冗长的重复序列。两个控制区在1,510 bp以上的序列相似性为97%，表明发生了协同序列进化。通过对无尾两栖类线粒体基因组结构的比较，发现Rh. schlegelii与典型的脊椎动物不同，但与Buergeria buergeri相似。tRNA-Leu（CUN）和tRNA-Thr基因的位置在Rh之间交换。schlegelii和B.比尔盖里。基于简约的考虑和B的基本系统发育位置。buergeri，这些基因似乎已经重新排列在一个祖先的血统，导致Rh。施莱格利。
The complete nucleotide sequence (21,359 bp) of the mitochondrial DNA of the rhacophorid frog Rhacophorus schlegelii was determined. The gene content, nucleotide composition, and codon usage of this genome corresponded to those typical of vertebrates. However, the Rh. schlegelii genome was unusually large due to the inclusion of two control regions and the accumulation of lengthy repetitive sequences in these regions. The two control regions had 97% sequence similarity over 1,510 bp, suggesting the occurrence of concerted sequence evolution. Comparison of the gene organizations among anuran species revealed that the mitochondrial gene arrangement of Rh. schlegelii diverged from that of typical vertebrates but was similar to that of Buergeria buergeri. The positions of the tRNA-Leu(CUN) and tRNA-Thr genes were exchanged between Rh. schlegelii and B. buergeri. Based on parsimonious consideration and the basal phylogenetic position of B. buergeri, these genes seemed to have been rearranged in an ancestral lineage leading to Rh. schlegelii.