Zoological Studies

Vol. 62, 2023

(update: 2023.5.25)

Phylogeography and genetic structure of the bush cricket Decma fissa (Orthoptera, Tettigoniidae) in China

Qi Guo1, Qi-Di Zhu1, Zhi-Jun Zhou1, and Fu-Ming Shi1,*

1Key Laboratory of Zoological Systematics and Application of Hebei Province, College of Life Sciences, Hebei University, Baoding, Hebei 071002, China. *Correspondence: E-mail: shif_m@126.com (Shi)
E-mail: artemis915@163.com (Guo); qidizhu0323@163.com (Zhu); zhijunzhou@163.com or zhijunzhou@hbu.edu.cn (Zhou)

(Received 29 November 2022 / Accepted 28 April 2023 / Published -- 2023)
Communicated by Jen-Pan Huang

Decma fissa is the most widely distributed species of the genus Decma occuring in southern China. This study presents the first phylogeographic work of D. fissa based on COI, Cytb and ITS sequence. We examined genetic diversity with ITS and mitochondrial sequence respectively, and phylogenetic work was based on the mitochondrial data. A high-level genetic diversity was revealed based on mitochondrial data but a low-level diversity was shown with ITS sequence. For the mitochondrial data, divergence time analysis displayed five lineages. Based on the Mantel test, geographic and genetic distances among D. fissa populations revealed a significant positive correlation. Bayesian skyline plot (BSP) analyses implied that none of three major lineages of D. fissa was seemingly affected by last glacial maximum (LGM, 0.015 – 0.025 Mya). The Ecological niche modeling was used to predict distribution of D. fissa in four periods (LGM, Mid-Holocene, current and 2070) in China. Analysis of the ancestral area reconstruction indicated that D. fissa occurred in South China area.

Key words: Decma fissa, Phylogeography, Ecological niche models, Population structure, Demographic history.

Citation: Guo Q, Zhu QD, Zhou ZJ, Shi FM. 2023. Phylogeography and genetic structure of the bush cricket Decma fissa (Orthoptera, Tettigoniidae) in China. Zool Stud 62:32.

Supplementary materials: Table S1Table S2Table S3Table S4Table S5Table S6