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New cytogenetic data for three species of Pentatomidae (Heteroptera): Dichelops melacanthus (Dallas, 1851), Loxa viridis (Palisot de Beauvois, 1805), and Edessa collaris (Dallas, 1851)
Comparative Cytogenetics ( IF 1 ) Pub Date : 2020-11-17 , DOI: 10.3897/compcytogen.v14.i4.56743
Jaqueline Fernanda Dionísio , Joana Neres da Cruz Baldissera , Angélica Nunes Tiepo , José Antônio Marin Fernandes , Daniel Ricardo Sosa-Gómez , Renata da Rosa

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.

中文翻译:

三种蝾螈科(异翅目)的新细胞遗传学数据:Dichelops melacanthus (Dallas, 1851)、Loxa viridis (Palisot de Beauvois, 1805) 和 Edessa collis (Dallas, 1851)

在本文中,我们介绍了螳螂科三个物种的新细胞遗传学数据:Dichelops melacanthus (Dallas, 1851)、Loxa viridis (Palisot de Beauvois, 1805) 和 Edessa collis (Dallas, 1851)。所有研究的物种都呈现全中心染色体和性染色体的反向减数分裂。D. melacanthus 有 2n = 12 (10A + XY);L. viridis 显示 2n = 14 (12A + XY); E.collis 显示 2n = 14 (12A + XY)。在这些物种中首次进行 C 显带,揭示了常染色体上的末端和间质异染色质区域;DAPI/CMA3 染色显示出不同的荧光模式。在所有物种中,用 18S rDNA 探针进行荧光原位杂交 (FISH) 鉴定了一个常染色体二价染色体上的信号,这是首次报道 FISH 在 D. melacanthus 和 L. viridis 物种中的应用。
更新日期:2020-11-17
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