New cytogenetic data for three species of Pentatomidae (Heteroptera): Dichelops melacanthus (Dallas, 1851), Loxa viridis (Palisot de Beauvois, 1805), and Edessa collaris (Dallas, 1851).

IF 1 4区生物学 Q4 GENETICS & HEREDITY

Comparative Cytogenetics Pub Date : 2020-11-17 eCollection Date: 2020-01-01 DOI:10.3897/CompCytogen.v14i4.56743

Jaqueline Fernanda Dionisio, Joana Neres da Cruz Baldissera, Angélica Nunes Tiepo, José Antônio Marin Fernandes, Daniel Ricardo Sosa-Gómez, Renata da Rosa

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引用次数: 1

Abstract

In this paper, we present new cytogenetic data for three species of the family Pentatomidae: Dichelops melacanthus (Dallas, 1851), Loxa viridis (Palisot de Beauvois, 1805), and Edessa collaris (Dallas, 1851). All studied species presented holocentric chromosomes and inverted meiosis for the sex chromosomes. D. melacanthus has 2n = 12 (10A + XY); L. viridis showed 2n = 14 (12A + XY); and E. collaris showed 2n = 14 (12A + XY). C-banding was performed for the first time in these species and revealed terminal and interstitial heterochromatic regions on the autosomes; DAPI/CMA₃ staining showed different fluorescent patterns. In all species, fluorescence in situ hybridization (FISH) with 18S rDNA probe identified signals on one autosomal bivalent, this being the first report of FISH application in the species D. melacanthus and L. viridis. The results obtained add to those already existing in the literature, enabling a better understanding of the meiotic behavior of these insects.

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三种蝽科（异翅目）的新细胞遗传学数据：Dichelops melacanthus（达拉斯，1851 年）、Loxa viridis（Palisot de Beauvois，1805 年）和 Edessa colonis（达拉斯，1851 年）。

本文报道了五蝽科三种植物的细胞遗传学新资料:Dichelops melacanthus (Dallas, 1851)， Loxa viridis (Palisot de Beauvois, 1805)和Edessa collaris (Dallas, 1851)。所有物种的性染色体均呈全新中心染色体和倒减数分裂。D. melacanthus有2n = 12 (10A + XY);L. viridis显示2n = 14 (12A + XY);e.c laris显示2n = 14 (12A + XY)。在这些物种中首次进行了c显带，发现常染色体上的末端和间质异色区;DAPI/CMA3染色显示不同的荧光模式。在所有物种中，荧光原位杂交(FISH)与18S rDNA探针在一个常染色体二价体上发现了信号，这是首次报道FISH在D. melacanthus和L. viridis中的应用。所获得的结果补充了文献中已经存在的结果，使人们更好地了解这些昆虫的减数分裂行为。

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来源期刊

Comparative Cytogenetics 生物-遗传学

CiteScore

2.40

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Comparative Cytogenetics is a peer-reviewed, open-access, rapid online journal launched to accelerate research on all aspects of plant and animal cytogenetics, karyosystematics, and molecular systematics. All published papers can be freely copied, downloaded, printed and distributed at no charge for the reader. Authors are thus encouraged to post the pdf files of published papers on their homepages or elsewhere to expedite distribution. There is no charge for color.