独特的共生蚧壳虫Orbuspedum machinator G.-Z.的核型和生殖特征（同翅目，球壳目）。(同翅目，球壳目）

IF 1 4区生物学 Q4 GENETICS & HEREDITY Comparative Cytogenetics Pub Date : 2023-12-18 DOI:10.3897/compcytogen.17.116550

Ilya A. Gavrilov-Zimin

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引用次数: 0

摘要

首次研究了Orbuspedum machinator Gavrilov-Zimin，2017（伪球藻科）的核型和生殖特征。雌性的二倍体染色体数为18。生殖方式可能是双性繁殖，这一点从所研究的约50%的胚胎细胞中父系染色体组存在特征性的Lecanoid异染色化可以看出。雌性生殖系统有一对侧输卵管，合并成扩大的总输卵管；精囊和附属腺体与总输卵管下部相连。完全的卵胎生是在胚胎发育过程中发生的。

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Karyotype and reproductive traits of the unique symbiotic mealybug Orbuspedum machinator G.-Z. (Homoptera, Coccinea)

The karyotype and reproductive features of Orbuspedum machinator Gavrilov-Zimin, 2017 (Pseudococcidae) were studied for the first time. Diploid chromosome number is 18 in females. Reproduction is probably bisexual, as indicated by the presence of characteristic Lecanoid heterochromatinization of the paternal set of chromosomes in embryonic cells of about 50% of the embryos studied. The female reproductive system has a pair of lateral oviducts merged into enlarged common oviduct; the spermatheca and accessory glands are connected to the common oviduct in its proximal part. Complete ovoviviparity occurs in ontogenesis.

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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.