PHYLOGENETIC SYSTEMATICS, CLADISTICS AND EVOLUTION
نویسندگان
چکیده
منابع مشابه
Phylogenetic Systematics or Nelson ' S Version of Cladistics ?
In as much as our paper (de Queiroz and Donoghue, 1988) was intended to be a contribution to, rather than a criticism of, phylogenetic systematics, it seems odd that Nelson (1989: 277) views our efforts as being "potentially destructive to the independence of cladistics". On closer inspection, however, Nelson's reaction is understandable as a manifestation of fundamental differences between wha...
متن کاملCRUSTACEAN PHYLOGENETIC SYSTEMATICS AND OPSIN EVOLUTION by
CRUSTACEANS AND OPSIN EVOLUTION Megan L. Porter Department of Microbiology and Molecular Biology Doctor of Philosophy Composed of a chromophore bound to an integral membrane protein (opsin), visual pigments are phenotypically characterized by the wavelength of maximal absorption (λmax). The underlying molecular mechanism controlling λmax is the interaction between the opsin amino acid sequence ...
متن کاملCladistics (1988)4:317-338 PHYLOGENETIC SYSTEMATICS AND THE SPECIES PROBLEM
A tension has arisen over the primacy of interbreeding versus monophyly in defining the species category. Manifestations of this tension include unnecessary restriction of the concept of monophyly as well as inappropriate attribution of "species" properties to "higher taxa", and vice versa. Distinctions between systems (wholes) deriving their existence from different underlying processes have b...
متن کاملPhylogenetic systematics and character evolution in the angiosperm family Haloragaceae.
The poorly known Haloragaceae R. Br. (Saxifragales) are highly diverse in habit (small trees to submerged aquatics) and labile in floral merosity (2-4), both uncommon among the core eudicots. This family has a cosmopolitan distribution, but taxonomic diversity is concentrated in Australia. An explicit phylogenetic approach has not previously been utilized to examine relationships or character e...
متن کاملPhylogenetic Systematics
Since the advent of the theory of evolutio n, o ne of the tasks of biology has bee n to i nvestigate the phyloge netic relatio nship betwee n species. This task is especially impor ta nt because all of the differe nces which exist betwee n species, whether i n morphology, physiology , or ecology, i n ways of behavior, or even i n geographical distributio n, have evolved , like the species thems...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Evolution
سال: 1968
ISSN: 0014-3820
DOI: 10.1111/j.1558-5646.1968.tb04000.x