Help on Camptosema

[Luciano Paganucci de Queiroz]

At 13:29 03/06/98 EST, ffclrp - biolog.6331010 340 wrote:
>Dear taxacomers,
>
>I have a small problem:
>I got confused with the use of the terms homology and analogy.
>
>So far, I believed in the existence of horizontal and vertical
>homologies.
>Vertical homologies are the homologies most commonly
>observed in literature. They are due to common ancestry.
>
>However, I believed as well in the existence of horizontal
>homologies. They arise because of interorganismal transfers
>such as gene transfer, learning, culture and so on.
>For me, it is quite natural to use the term homology in such
>cases as well.
>But, I am aware that in the cladistic paradigm such homologies
>turn up as homoplasies.
>
>And, to turn everything more complicated, sometimes the scientists
>use the term analogy.
>I think an analogy would be some kind of functional similarity
>of a given structure.
>But, I know cases where scientists undoubtedly apply the term analogy
>to supposed (though unproven) horizontal homologies.
>
>Someone wants to discuss this item?   Thomas
>
>
>---------------------------------------------------------------------------
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>Thomas Schlemmermeyer
>Museu de Zoologia, Universidade de Sco Paulo
>Caixa Postal 42694
>CEP 04299-970
>Sco Paulo, SP, Brasil
>
>Residjncia:
>Thomas Schlemmermeyer
>Caixa Postal 00276
>CEP 14001-970
>Ribeirco Preto, SP, Brasil
>
>Fone, Fax: 016 6371999
>---------------------------------------------------------------------------
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>


****************************
LUCIANO PAGANUCCI DE QUEIROZ
UEFS, Depto. de Ci=EAncias Biol=F3gicas
Km 03 BR 116, Campus
44031-460, Feira de Santana, Bahia, Brasil
Fone (075) 224 8021
Fax (075) 224 8019
E-mail: lqueiroz at uefs.br