Morphology and gene sequence of Levicoleps biwae n. gen., n. sp. (Ciliophora, Prostomatida), a proposed endemic from the ancient Lake Biwa, Japan.
Morphology and gene sequence of Levicoleps biwae n. gen., n. sp. (Ciliophora, Prostomatida), a proposed endemic from the ancient Lake Biwa, Japan.
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DOI：
10.1111/j.1550-7408.2008.00323.x
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发表时间：
2008-05
期刊：
影响因子：
--
通讯作者：
Shimano S
中科院分区：
文献类型：
--
作者：
Foissner W;Kusuoka Y;Shimano S
Levicoles biwae n. 琵琶鱼将军，n. sp。是在日本琵琶湖岸边的有机泥浆中发现的。用标准方法研究了其形态和小亚基rRNA基因序列。此外，我们为鳞甲甲建立了一个术语，并选择了四个特征用于属识别：甲层的数量、层板的结构、甲刺的存在/不存在以及口腔细胞器的数量（三个或五个）。日本鞘翅目是一种桶状纤毛虫，平均尺寸为 75 × 45 μm，有六个装甲层和 hirtus 型层板，但在环境和实验室培养中都缺乏装甲刺。因此，它被认为代表了一个新属。这一排名得到了与常见 Coles hirtus 相当大的遗传距离 (7%) 的支持。虽然 L. biwae 在体内看起来与 C. hirtus 非常相似，但从体型、纤毛行数，尤其是多个尾部纤毛表明，它很可能与 Coles amphacanthus 最密切相关，这是一种具有明显盔甲刺的物种。琵琶湖约有四百万年的历史，栖息着许多特有生物，从藻类到大型鱼类。因此，我们怀疑 L. biwae 仅限于琵琶湖，或者至少仅限于亚洲。根据文献数据和已建立的通用特征，我们还建议将新的 Reticoleps 属命名为 Coleps remanei，并重新命名 Pinacocoleps 属，包括 Coleps incurvus、Coleps pulcher、Coleps tessalatus 以及可能的 Baikalocolepsquadratus。诊断出九个鳞类动物属并进行二分键控。
Levicoleps biwae n. gen., n. sp. was discovered in organic mud on the shore of Lake Biwa, Japan. Its morphology and small subunit rRNA gene sequence were studied with standard methods. Further, we established a terminology for the colepid armour and selected four features for genus recognition: the number of armour tiers, the structure of the tier plates, the presence/absence of armour spines, and the number of adoral organelles (three or five). The Japanese colepid, a barrel-shaped ciliate with an average size of 75 × 45 μm, has six armour tiers and hirtus-type tier plates, but lacks armour spines, both in the environment and in laboratory culture. Thus, it is considered to represent a new genus. This rank is supported by the considerable genetic distance (7%) from the common Coleps hirtus. Although L. biwae looks quite similar to C. hirtus in vivo, it is very likely most closely related to Coleps amphacanthus, a species with conspicuous armour spines, as indicated by body size, the number of ciliary rows and, especially, the multiple caudal cilia. Lake Biwa is about four million years old and inhabited by many endemic organisms, ranging from algae to large fish. Thus, we suspect that L. biwae is restricted to Lake Biwa or, at least, to Asia. Based on literature data and the generic features established, we also propose the new genus Reticoleps for Coleps remanei , and resurrect the genus Pinacocoleps to include Coleps incurvus , Coleps pulcher , Coleps tessalatus and, probably, Baikalocoleps quadratus . Nine colepid genera are diagnosed and dichotomously keyed.
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影响因子：
3.9
作者：
HASEGAWA, M;KISHINO, H;YANO, TA
通讯作者：
YANO, TA
影响因子：
2.9
作者：
DRAGESCO, J;DRAGESCOKERNEIS, A
通讯作者：
DRAGESCOKERNEIS, A
DOI：
10.1111/j.1550-7408.1987.tb03158.x
发表时间：
1987-05-01
期刊：
JOURNAL OF PROTOZOOLOGY
影响因子：
--
作者：
HUTTENLAUCH, I;BARDELE, CF
通讯作者：
BARDELE, CF
影响因子：
2.9
作者：
HUTTENLAUCH, I
通讯作者：
HUTTENLAUCH, I
影响因子：
4.2
作者：
GUHL, BE;FINLAY, BJ;SCHINK, B
通讯作者：
SCHINK, B