Morphometric and meristic variation in ricefishes, genusOryzias: a comparison with cytogenetic data
Morphometric and meristic variation in ricefishes, genusOryzias: a comparison with cytogenetic data
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稻鱼属的形态和分枝变异：与细胞遗传学数据的比较
DOI：
10.1007/bf02905401
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发表时间：
1988
期刊：
影响因子：
--
通讯作者：
L. Parenti
中科院分区：
文献类型：
--
作者：
H. Uwa;L. Parenti
本文报道了稻属鱼类的形态测量学和分生组织学资料，特别是稻属鱼类的形态测量学和分生组织学资料。latipes和O. curvinotus），以比较形态学数据和细胞遗传学分析（Uwa，1986）所显示的水稻鱼类的亲缘关系。沿着传统上使用的形态特征和分生特征，两个形态特征对本属的分类是有用的：腹部的相对长度和背鳍起点的相对位置。外部解剖数据大多同意核的基础上的分类稻鱼，虽然像细胞遗传学数据，他们不足以区分所有物种，或定义单系群。Oryzias latipes广泛分布于东亚。Oryzias curvinotus是指产于海南岛的稻鱼，分布于中国南方，包括海南、广东、香港和河内。Oryzias Jordan和Snyder是亚洲大陆和岛屿广泛分布的小型热形鱼类。它们常见于淡水池塘、沟渠和稻田，也可能栖息于微咸水中。迄今为止，已发现7种（罗森，1964）或10种（山本，1975）。最近，对比较骨骼学（Iwamatsu和Hirata，1980）、细胞核学（Uwa和岩田，1981; Uwa和Ojima，1981; Uwa等，1981）、同工酶变异（Sakaizumi等人，1980，1983）和系统发育位置（罗森和帕伦蒂，1981）。有核型资料的8种植物可分为3个染色体组：单臂染色体组、O. melanoma（McClelland）和O. javanicus（Bleeker），2n= 48条近端着丝粒或近端着丝粒染色体; latipes（Temminck和Schlegel）、O. curvinotus（Nichols和Pope）、O. luzonensis（Herre和
Morphometric and meristic data from type and other material of ricefishes of the genus Oryzias, particularly on O. latipes and O. curvinotus, were retaken to compare relationships of ricefishes indicated by morphological data with the relationships indicated by the cytogenetic analyses (Uwa, 1986). Along with morphometric and meristic characters traditionally used, two morphometric characters are useful for the classification of this genus: the relative length of the abdominal part and the relative position of the dorsal-fin origin. External anatomical data mostly agree with a classification of ricefishes based on karyology; although, like the cytogenetic data, they are not sufficient to distinguish all species, or to define monophyletic groups. Oryzias latipes is widespread in eastern Asia. Oryzias curvinotus, a name applied to ricefish from Hainan Island, is distributed more widely in southern China, including Hainan, Guangdong, Hong Kong, and Hanoi.Ricefishes of the genus Oryzias Jordan and Snyder are small atherinomorph fishes found widespread in continental and insular Asia. They are common in freshwater ponds, ditches, and paddy fields, and may inhabit brackish water. Seven (Rosen, 1964) or ten (Yamamoto, 1975) species have been recognized so far. Recently, there has been a renewed interest in the comparative osteology (Iwamatsu and Hirata, 1980), karyology (Uwa and Iwata, 1981; Uwa and Ojima, 1981; Uwa et al., 1981), isozyme variation (Sakaizumi et al., 1980, 1983), and phylogenetic position (Rosen and Parenti, 1981) of ricefishes. The eight species on which karyotype data are available can be divided into three chromosomal groups: the monoarmed chromosome group, O. melastigma (McClelland) and O. javanicus (Bleeker), with 2n= 48 acrocentric or subtelocentric chromosomes; the biarmed chromosome group, O. latipes (Temminck and Schlegel), O. curvinotus (Nichols and Pope), O. luzonensis (Herre and