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首页> 外文期刊>Journal of Nematology, with Annual of Applied Nematology >Pristionchus bucculentus n. sp. (Rhabditida: Diplogastridae) isolated from a shining mushroom beetle (Coleoptera: Scaphidiidae) in Hokkaido, Japan.
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Pristionchus bucculentus n. sp. (Rhabditida: Diplogastridae) isolated from a shining mushroom beetle (Coleoptera: Scaphidiidae) in Hokkaido, Japan.

机译：斑鸠sp。 （Rhabditida：Diplogastridae）从发光的甲虫（鞘翅目：Scaphidiidae）分离在日本北海道。

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摘要

Pristionchus bucculentus n. sp. was isolated from a shining mushroom beetle, Episcapha gorhami, associated with white rot on a decaying log in Hokkaido, Japan. The new species is distinguished by its stomatal morphology, which includes three regularly shaped, conical left subventral denticles and a vacuolated cheilostom with weak internal sclerotization. Also distinguishing P. bucculentus n. sp. are male sexual characters, including arrangement of genital papillae, a rounded and ventrally skewed manubrium, and a gubernaculum with a large, deep posterior curvature and a short, shallow anterior curvature. Morphological and molecular evidence support the new species as being close to P. elegans, which was previously the most basal known species of the genus. Comparative morphology of basal Pristionchus species is supported by a molecular phylogeny inferred from a partial small subunit ribosomal rRNA gene and 25 ribosomal protein-coding genes. Description of P. bucculentus n. sp. provides a new point of comparison for reconstructing the evolution of stomatal characters in the comparative model system of Pristionchus.
机译：斑节菜（Pristionchus bucculentus） sp。它是从日本北海道腐烂的原木上腐烂的蘑菇中分离出的发光的甲虫Episcapha gorhami分离得到的。新物种以其气孔形态而著称，其中包括三个规则形状的圆锥形左下室下齿和一个空洞的石棺，内部硬化较弱。也可用来区分P. bucculentus。 sp。是男性的性格特征，包括生殖器乳头的排列，圆形和腹侧偏斜的手掌，以及具有大的深后弯曲度和短而浅的前弯曲度的古柏。形态和分子证据支持该新物种接近线虫（P. elegans），后者以前是该类中最基础的已知物种。从部分小亚基核糖体rRNA基因和25个核糖体蛋白编码基因推断出的分子系统发育支持了基础Pristionchus物种的比较形态。球藻的描述sp。为在Pristionchus的比较模型系统中重建气孔特征的演变提供了新的比较点。

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