College of Life Sciences, China West Normal University, Nanchong 637009, China.
The Key Laboratory of Southwest China Wildlife Resources Conservation of the Ministry of Education, College of Life Sciences, China West Normal University, Nanchong 637009, China.
Genes (Basel). 2024 Oct 17;15(10):1336. doi: 10.3390/genes15101336.
Three mitochondrial genomes of Chrysochroinae (Buprestidae) were sequenced and analyzed. The mitogenomes of the genera and are first reportedand is a first record for China. The complete mitogenomes of , and exhibit striking similarities in their lengths and composition. Specifically, their lengths are 15,594 bp, 15,775 bp and 15,587 bp, respectively. Each of these genomes encodes 37 typical mitochondrial genes. The overwhelming majority of protein-coding genes (PCGs) have the typical ATN (ATT, ATA, ATG or ATC) as the start codon and terminate with TAR (TAA or TAG) as the stop codon or an incomplete stop codon T-. Among the three mitogenomes, Leu2, Ser2 and Phe were the most frequently encoded amino acids. In the PCGs, the Ka/Ks ratio of is the lowest, whereas has the highest value. This suggests that can be used as a molecular barcode for species delimitation and phylogeny in Chrysochroinae. The phylogenetic results showed that . and two species formed a clade. Based on the topology of the phylogenetic tree, the genus should be reassigned as a subgenus of .
测序并分析了 Chrysochroinae（吉丁科）的三个线粒体基因组。首次报道了 和 属的线粒体基因组， 是中国的首次记录。 、 和 的完整线粒体基因组在长度和组成上具有显著的相似性。具体来说，它们的长度分别为 15594bp、15775bp 和 15587bp。这些基因组分别编码 37 个典型的线粒体基因。绝大多数蛋白质编码基因（PCGs）都具有典型的 ATN（ATT、ATA、ATG 或 ATC）作为起始密码子，并以 TAR（TAA 或 TAG）作为终止密码子或不完全终止密码子 T-终止。在这三个线粒体基因组中，亮氨酸（Leu2）、丝氨酸（Ser2）和苯丙氨酸（Phe）是最常编码的氨基酸。在 PCGs 中， 的 Ka/Ks 比值最低，而 的比值最高。这表明 可以作为 Chrysochroinae 物种界定和系统发育的分子条码。系统发育结果表明， 、 和两个 种形成了一个分支。基于系统发育树的拓扑结构， 属应重新归类为 的一个亚属。
