新证据表明 Bergroth 属（Hemiptera，Reduviidae，Triatominae）为单系群。
New Evidence of the Monophyletic Relationship of the Genus Bergroth, 1911 (Hemiptera, Reduviidae, Triatominae).
机构信息
Departamento de Ciências Biológicas, Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista "Júlio de Mesquita Filho", Araraquara, Brazil.
Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista "Júlio de Mesquita Filho", São José do Rio Preto, Brazil.
出版信息
Am J Trop Med Hyg. 2018 Dec;99(6):1485-1488. doi: 10.4269/ajtmh.18-0109.
Abstract
The genus within the subfamily Triatominae and tribe Rhodniini comprises the species , , and , all potential vectors of Chagas disease. A feature of is their close association with birds, which makes them an interesting model for evolutionary studies. We analyzed cytogenetically spp., with the aim of contributing to the genetic and evolutionary knowledge of these vectors. All species of the showed the same chromosomal characteristics: chromocenter formed only by sex chromosomes X and Y, karyotype 2 = 22 and constitutive heterochromatin, and AT base pairs restricted to the sex chromosome Y. These results corroborate the monophyly of the genus and lead to the hypothesis that during the derivation of , , and from their common ancestor, there was no reorganization in the number or structure of chromosomes.
摘要
within the subfamily Triatominae 和 tribe Rhodniini 的属包括物种 、 、 ，它们都是恰加斯病的潜在传播媒介。 的一个特点是它们与鸟类密切相关，这使它们成为进化研究的有趣模型。我们对 进行了细胞遗传学分析，旨在为这些传播媒介的遗传和进化知识做出贡献。 属的所有物种都表现出相同的染色体特征：由性染色体 X 和 Y 形成的染色质中心，核型 2 = 22 和组成性异染色质，以及仅限于 Y 性染色体的 AT 碱基对。这些结果证实了 的单系性，并提出了这样的假设，即在从共同祖先分化出 、 、 的过程中，染色体的数量或结构没有发生重组。
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