Farewell to Species - reticulation

Curtis Clark jcclark at CSUPOMONA.EDU
Tue Feb 1 19:25:29 CST 2000

At 07:37 PM 00.02.01 +0100, Pierre Deleporte wrote:
>Anyway some
>distinction between "homology by descent in direct lineage" and e.g.
>"homology by hybridization" seems useful in the phylogenetic debate.

But there is no difference. In one of my study genera, species F and
species A both inherited the homology of UV-reflecting ray flowers from a
common ancestor. Species A is the result of hybridization (and its other
parent lacks UV reflectance), species C isn't.

Curtis Clark                  http://www.csupomona.edu/~jcclark/
Biological Sciences Department             Voice: (909) 869-4062
California State Polytechnic University      FAX: (909) 869-4078
Pomona CA 91768-4032  USA                  jcclark at csupomona.edu

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