The relevance of metrical, chromosomal and allozyme variation to the systematics of the genusMus
作者:
G. B. CORBET,
期刊:
Biological Journal of the Linnean Society
(WILEY Available online 1990)
卷期:
Volume 41,
issue 1‐3
页码: 5-12
ISSN:0024-4066
年代: 1990
DOI:10.1111/j.1095-8312.1990.tb00817.x
出版商: Blackwell Publishing Ltd
关键词: Systematics;Mus;morphometries;chromosomes;allozymes
数据来源: WILEY
摘要:
The contribution of metrical, karyological and biochemical techniques towards taxonomic understanding is considered with respect to (1) the delimitation of species; (2) the classification of species at generic level; and (3) subspecific variation. All these techniques are useful for the discrimination of sibling species, with metrical discriminants especially important in helping to establish the geographical limits of species, being applicable to museum collections and to fossil material. In classification at the generic level multivariate morphometric analysis is of very limited value, but karyology and allozyme studies can make important contributions provided the majority of relevant species are examined. All techniques are relevant to establishing the major aspects of subspecific variation, for which formal subspecific nomenclature is rarely appropriate. Problems of extrapolation from inadequate samples are just as acute when using these techniques as with more traditional taxonomy based on morphology. Clear presentation of results in the form of data matrices and dendrograms is important in facilitating the integration of data into a useful taxonomic system.
点击下载:
PDF
(556KB)
返 回