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三种 Rhodnius Stål, 1859（半翅目，Reduviidae，Triatominae）若虫：形态、形态计量学和分类学意义。

Immature instars of three species of Rhodnius Stål, 1859 (Hemiptera, Reduviidae, Triatominae): morphology, morphometry, and taxonomic implications.

机构信息

Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista (Unesp), Rodovia Araraquara-Jaú km 1, Araraquara, SP, 14801-902, Brazil.

Departamento de Epidemiologia, Faculdade de Saúde Pública, Laboratório de Entomologia em Saúde Pública, Universidade de São Paulo, Av. Dr. Arnaldo 715, São Paulo, SP, Brazil.

出版信息

Parasit Vectors. 2022 Mar 18;15(1):91. doi: 10.1186/s13071-022-05200-2.

DOI:10.1186/s13071-022-05200-2
PMID:35303937
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8932165/
Abstract

BACKGROUND

Among the 18 genera of the Triatominae subfamily, three stand out for their diversity and epidemiological importance: Triatoma, Panstrongylus, and Rhodnius. Rhodnius includes 21 species that can transmit Trypanosoma cruzi (the etiological agent of Chagas disease, also known as American trypanosomiasis) and Trypanosoma rangeli. The Rhodnius prolixus complex comprises seven species, including Rhodnius marabaensis, Rhodnius prolixus, and Rhodnius robustus, which occur in the northern region of Brazil. Since both adults and immatures can carry T. cruzi, in this study the five nymphal instars of the three species mentioned were dorsally characterized.

METHODS

Using microscopy, morphometrics, and geometric morphometrics, the present work measures and describes the morphological characters of the five nymphal instars of R. marabaensis, R. prolixus, and R. robustus.

RESULTS

The study enabled the characterization of all five nymphal instars, as well as the distinction between the three species in each of their instars.

CONCLUSIONS

The morphological, morphometrics of the head, thorax, and abdomen and geometric morphometrics studies of the head enabled the specific distinction of these three species in all five instars.

摘要

背景

在 18 种三锥虫亚科属中，有三个属因其多样性和流行病学重要性而引人注目：三锥虫属、潘氏锥虫属和罗氏锥虫属。罗氏锥虫属包括 21 种，可传播克氏锥虫（恰加斯病的病原体，也称为美洲锥虫病）和拉氏锥虫。罗氏锥虫复合体包括 7 个种，包括马氏罗氏锥虫、长角罗氏锥虫和强壮罗氏锥虫，它们分布在巴西北部地区。由于成虫和若虫都可以携带 T. cruzi，因此在本研究中，对上述三种生物的五个若虫龄期进行了背侧特征描述。

方法

本研究使用显微镜、形态计量学和几何形态计量学，对马氏罗氏锥虫、长角罗氏锥虫和强壮罗氏锥虫的五个若虫龄期的形态特征进行了测量和描述。

结果

本研究实现了对所有五个若虫龄期的特征描述，以及在每个若虫龄期区分这三个种的能力。

结论

对头、胸、腹的形态学、形态计量学和头部的几何形态计量学研究，使得在所有五个龄期都能明确区分这三个种。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bede/8932165/68e081add512/13071_2022_5200_Fig13_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bede/8932165/856cb921f665/13071_2022_5200_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bede/8932165/fcc56a603519/13071_2022_5200_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bede/8932165/9c2b83458b23/13071_2022_5200_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bede/8932165/ba3b1b606602/13071_2022_5200_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bede/8932165/633d41fffa5b/13071_2022_5200_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bede/8932165/c6b3f98d1b20/13071_2022_5200_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bede/8932165/1ff041d40392/13071_2022_5200_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bede/8932165/3a7ff338a9e8/13071_2022_5200_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bede/8932165/83e5bd92a359/13071_2022_5200_Fig11_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bede/8932165/f25a55c0fcfb/13071_2022_5200_Fig12_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bede/8932165/68e081add512/13071_2022_5200_Fig13_HTML.jpg

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