Chromatophore distribution and inferior performance of albino Japanese flounder Paralichthys olivaceus with special reference to different chromatophore expression between albinism and pseudo-albinism.
Chromatophore distribution and inferior performance of albino Japanese flounder Paralichthys olivaceus with special reference to different chromatophore expression between albinism and pseudo-albinism.
复制标题
白化牙鲆的色素分布和较差的性能，特别是白化病和假白化病之间色素细胞表达的不同。
DOI：
10.1002/jez.372
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
A. Nakamura
中科院分区：
文献类型：
--
作者：
T. Shikano;Yukinori Shimada;A. Nakamura
白化病与大的变化，在身体的颜色被发现在孵化人口的日本比目鱼。除了白化病，ambicoloration和伪白化病同时观察到在一些个人。白化病有一个显着较低的黑色素细胞的数量比野生型个体的眼侧的规模，虽然没有显着差异，观察到的xanthophores和iridophores的数量。白化病人的体色强度与黑色素细胞的数量显著相关。眼侧和双色区之间的体色强度和黑色素细胞数量无显着差异。假白化病伴随着黑色素细胞和黄色素细胞的减少，表明白化病和假白化病之间的色素细胞的表达模式不同。白化病和假白化病的共同作用导致白化病患者假白化区的黑色素细胞和黄色素细胞消失。除色素细胞外，白化个体与野生个体之间还存在一些表型性状的差异。白化病人的生长相关性状劣于野生型个体。此外，白化个体的假白化面积和椎体畸形率均高于野生型个体。利用微卫星位点测定的个体多位点杂合度和近交系数均未显示白化个体的近交系数高于野生个体。本研究揭示了比目鱼体色异常中色素细胞的表达模式，以及白化基因对某些表型性状的潜在多效性效应。
Albinism with a large variation in body color was found in a hatchery population of Japanese flounder. In addition to albinism, ambicoloration and pseudo-albinism were simultaneously observed in some individuals. Albinos had a remarkably lower number of melanophores on the scales of ocular side than wild-type individuals did, although no significant difference was observed in the numbers of xanthophores and iridophores. The intensity of body color significantly correlated with the number of melanophores among the albinos. No significant differences were observed in the intensity of body color and the number of melanophores between the ocular side and the ambicoloration area. Pseudo-albinism was accompanied by the reductions of melanophores and xanthophores, indicating the different expression patterns of chromatophores between albinism and pseudo-albinism. The combined effects of albinism and pseudo-albinism caused the disappearances of melanophores and xanthophores in the pseudo-albinism area of albinos. In addition to chromatophores, the different characteristics of several phenotypic traits were observed between albinos and wild-type individuals. Growth-related traits of the albinos were inferior to those of the wild-type individuals. Furthermore, the albinos had a larger pseudo-albinism area and a higher vertebral deformed rate than the wild-type individuals did. Individual multilocus heterozygosity and inbreeding coefficient measured by microsatellite loci did not show any indication that the albinos had higher inbreeding coefficient than the wild-type individuals did. This study demonstrated the expression patterns of chromatophores in the body color abnormalities of a flatfish species and the potential pleiotropic effects of an albinism gene on some phenotypic traits.
影响因子：
2.5
作者：
Sugimoto, M
通讯作者：
Sugimoto, M