Variation in respiratory rate and gill morphology in different genetic lineages of Isonychia japonica Ulmer, 1919 (Ephemeroptera: Isonychiidae)

IF 0.5 4区农林科学 Q4 ENTOMOLOGY Aquatic Insects Pub Date : 2021-07-14 DOI:10.1080/01650424.2021.1942495

Rie Saito, J. Jo

引用次数: 0

Abstract

Abstract Isonychia japonica Ulmer, 1919 in the Japanese Archipelago is composed of two genetic lineages that live in different habitats of river ecosystems in the larval stage: clade J-U inhabits upstream and clade J-D inhabits downstream reaches. Whilst their distribution is well known, their morphology and how they have adapted to these diverse environments remains unknown. In this study, we focus on the physiological characteristics, especially the oxygen consumption, and gill morphology of larvae of these two lineages of I. japonica to infer how they adapt to different environments. Our results indicate that I. japonica of the clade J-U has a higher O2 consumption and is greatly influenced by temperature compared to the clade J-D, which is consistent with the physicochemical characteristics of their habitats. Also we show that the two lineages of I. japonica are not only divergent genetically and in their environmental habitats but also different morphologically and physiologically.

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日本等甲不同遗传系呼吸频率和鳃形态的变化(蜉蝣目:等甲科)

摘要日本群岛Isonychia japonica Ulmer, 1919在幼虫期由生活在河流生态系统不同生境的两个遗传谱系组成:J-U进化支生活在上游，J-D进化支生活在下游。虽然它们的分布是众所周知的，但它们的形态以及它们如何适应这些不同的环境仍然未知。在本研究中，我们重点研究了这两个品种的粳稻幼虫的生理特征，特别是耗氧量和鳃形态，以推断它们如何适应不同的环境。结果表明，与J-D支系相比，J-U支系的粳稻耗氧量更高，受温度的影响较大，这与生境的理化特征相一致。结果表明，粳稻的两个世系不仅在遗传和环境生境上存在差异，而且在形态和生理上也存在差异。

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

Aquatic Insects 生物-昆虫学

CiteScore

2.00

自引率

25.00%

发文量

审稿时长

>12 weeks

期刊介绍： Aquatic Insects is an international journal publishing original research on the systematics, biology, and ecology of aquatic and semi-aquatic insects. The subject of the research is aquatic and semi-aquatic insects, comprising taxa of four primary orders, the Ephemeroptera, Odonata, Plecoptera, and Trichoptera but also aquatic and semi-aquatic families of Hemiptera, Coleoptera, and Diptera, as well as specific representatives of Hymenoptera , Lepidoptera, Mecoptera, Megaloptera , and Neuroptera that occur in lotic and lentic habitats during part of their life cycle. Studies on other aquatic Hexapoda (i.e., Collembola) will be only accepted if space permits. Papers on other aquatic Arthropoda (e.g., Crustacea) will not be considered, except for those closely related to aquatic and semi-aquatic insects (e.g., water mites as insect parasites). The topic of the research may include a wide range of biological fields. Taxonomic revisions and descriptions of individual species will be accepted especially if additional information is included on habitat preferences, species co-existing, behavior, phenology, collecting methods, etc., that are of general interest to an international readership. Descriptions based on single specimens are discouraged. Detailed studies on morphology, physiology, behavior, and phenology of aquatic insects in all stadia of their life cycle are welcome as well as the papers with molecular and phylogenetic analyses, especially if they discuss evolutionary processes of the biological, ecological, and faunistic formation of the group.