动物的分节现象  

The phenomenon of animal segmentation

作　　者：李海云[1] 李瀛 LI Haiyun;LI Ying(College of Animal Science,South China Agricultural University,Guangzhou 510642,China;College of Life Sciences,South China Agricultural University,Guangzhou 510642,China)

机构地区：[1]华南农业大学动物科学学院,广州510642 [2]华南农业大学生命科学学院,广州510642

出　　处：《生物学杂志》2023年第6期94-98,共5页Journal of Biology

基　　金：2019广东省系列在线开放课程(222071);2020广东省系列在线开放课程(K20280)。

摘　　要：从分节现象的定义、国内外动物分节现象的用词混乱状况、动物分节的起源、分节的类型及其演化意义等方面综述动物分节现象的相关内容。介绍人们对动物分节现象认识的基本情况及存在的困惑,将动物分节现象的定义进行调整,以增加其普适性;结合动物分节起源实际,将动物分节的起源归纳为后生长区起源、前生长区起源和轴向同时起源3种基本类型;用更通俗的词语介绍传统同律分节及异律分节的具体定义及实例;明确同律分节及异律分节普遍存在于动物界众多类群而非局限于环节动物、节肢动物及脊索动物或脊椎动物;在传统同律分节及异律分节基础上增加系列重复类型。旨在使读者对动物分节现象有较全面的理解,同时为动物学教学提供有益的参考。The definition of animal segmentation phenomenon,from its phenomenon and word disorder status at home and abroad,its origin,type and its evolutionary significance were summarized.The basic situation and the existing confusion of the concept of animal segmentation phenomenon were introduced,and the definition of animal segmentation phenomenon was adjusted to increase the universal nature of animal segmentation.The origin of segmentation phenomena was summarized as the origin of the posterior growth zone,origin of the anterior growth zone and axial simultaneous origin three types.The definition and the examples of traditional homonomous segmentation and heteronomous segmentation were introduced in the more common words.It was clear that the homonomous segmentation and heteronomous segmentation generally existed in the animal kingdom rather than limited to annelids,arthropods and chordates or vertebrates.The serial repetition was added to traditional homonomous segmentation and heteronomous segmentation.The aim was to make readers have a comprehensive understanding of the phenomenon of animal segmentation and provide useful reference for zoology teaching.

关 键 词：动物 同律分节 异律分节 系列重复 起源 演化意义 

分 类 号：Q954[生物学—动物学]