CONCEPT OF HOMOLOGY AND EVOLUTION OF NERVOUS SYSTEM
CONCEPT OF HOMOLOGY AND EVOLUTION OF NERVOUS SYSTEM
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DOI:
10.1159/000125482
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发表时间:
1970-01-01
影响因子:
1.7
通讯作者:
HODOS, W
中科院分区:
文献类型:
--
作者:
CAMPBELL, CB;HODOS, W
One of the major tasks of comparative anatomy has traditionally been the determination of homology. In order to make meaningful compari sons, one must be able to recognize comparable structures in those spe cies examined. The concept that indicates which are the comparable struc tures is the concept of homology. However, the biological meaning of the term ‘homology’has been the subject of considerable discussion and disa greement in the zoological literature. A number of comparative neuroana tomists have seemingly been unaware of the controversy and its implica tions for the use of the term ‘homology’in comparative ncuroanatomy. The purpose of this paper is to describe the origins of the term ‘homo logy’in systematic biology and to indicate some of the current theoretical positions prevalent among systematic biologists. We will then describe some of the ways that comparative neuroanatomists have applied the term to the nervous system, state our own position on this controversy, and suggest some criteria for the recognition of homology. We appreciate that the controversy may not, in the foreseeable future, be settled to the complete satisfaction of all workers in this field. However, we hope that by setting forth the issues as we see them and stimulating discussion, we may find broad areas of agreement so that future questions of homology will be concerned less with semantics and more with data. The field of comparative neuroanatomy is potentially a source of sig nificant contributions to the broad field of systematic biology. In order