Species status of populations of Lethocerus indicus (Lepeletier and Serville, 1825) (Heteroptera: Belostomatidae) in Southeast Asia

IF 0.6 4区农林科学 Q4 ENTOMOLOGY

Pan-Pacific Entomologist Pub Date : 2022-09-16 DOI:10.3956/2022-98.3.205

Sakkouna Phommavongsa, M. Vu, Phan Hoang Anh Nguyen

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引用次数: 0

Abstract

Abstract. The giant water bug, Lethocerus indicus (Lepeletier & Serville, 1825), is an aquatic true bug that has been included in the Vietnam Red Data Book since 1992 (“ca-cuong” in Vietnamese, “maeng-da” in Laos and Thailand). This insect also has been listed as an endangered species in Japan, Laos, and South Korea. This study aimed to (1) perform a genetic analysis to determine the species status of various populations of L. indicus in Southeast Asia, and (2) initially survey their distribution in Vietnam and Laos. Four populations were collected: two from the Vientiane Capital and Savannakhet Province areas of Laos, and two from the Vinh Phuc and Long An areas of Vietnam, respectively. Cytochrome oxidase subunit I (COI) fragments longer than 600 bps were amplified by polymerase chain reaction (PCR). Twelve nucleotide polymorphisms were found among these four populations. A maximum likelihood tree based on COI showed that the genetic distances among populations were very small, ranging from 0.2% to 1.1%, and were substantially distant from other populations of Lethocerus. Therefore, they are all considered to be conspecific and to represent L. indicus.

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文章标题东南亚褐蝽属(leeletier and Serville, 1825)种群现状(异翅目:褐蝽科)

摘要巨型水蝽Lethocerus indicus（Lepeletier&Serville，1825）是一种水生真蝽，自1992年以来一直被列入越南红色数据册（越南语为“ca cuong”，老挝和泰国为“maeng da”）。这种昆虫在日本、老挝和韩国也被列为濒危物种。本研究旨在（1）进行遗传分析，以确定东南亚印度乳杆菌不同种群的物种状况；（2）初步调查其在越南和老挝的分布。采集了四个种群：两个来自老挝首都万象和沙湾拿吉省地区，两个分别来自越南永福和隆安地区。用聚合酶链式反应（PCR）扩增长度超过600bps的细胞色素氧化酶亚基I（COI）片段。在这四个群体中发现了12个核苷酸多态性。基于COI的最大似然树显示，种群之间的遗传距离很小，从0.2%到1.1%不等，与其他Lethocerus种群相距甚远。因此，它们都被认为是同种的，并代表印度乳杆菌。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Pan-Pacific Entomologist 生物-昆虫学

CiteScore

0.50

自引率

20.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Pan-Pacific Entomologist (ISSN 0031-0603) is published quarterly (January, April, July and October) by the Pacific Coast Entomological Society, in cooperation with the California Academy of Sciences. The journal serves as a refereed publication outlet and accepts manuscripts on all aspects of the biosystematics of insects and closely related arthropods, especially articles dealing with their taxonomy, biology, behavior, ecology, life history, biogeography and distribution. Membership in the Pacific Coast Entomological Society includes subscription to The Pan-Pacific Entomologist, and Society Proceedings typically appear in the October issue of each volume.