منابع مشابه
Phylogenetic 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 کاملOntogeny and Phylogenetic Systematics
Dedifferentiation, paedomorphosis, and the insertion and deletion of developmental stages make it impossible to deduce the genealogical hierarchy frum only ontogenetic transformation series. Like the outgroup criterion, ontogenetic character precedence is not theory-neutral and to use it to deduce genealogy requires certain assumptions. If scientists are going to use logically unbeatable theori...
متن کاملPhylogenetic systematics turns over a new leaf.
Long restricted to the domain of molecular systematics and studies of molecular evolution, likelihood methods are now being used in analyses of discrete morphological data, specifically to estimate ancestral character states and for tests of character correlation. Biologists are beginning to apply likelihood models within a Bayesian statistical framework, which promises not only to provide answ...
متن کاملBook review Foundations of phylogenetic systematics
‘‘Foundations of Phylogenetic Systematics’’ (FPS), Johann-Wolfgang Wägele’s updated translation of an earlier German version (Wägele, 2001), has several unifying objectives, namely ‘‘to present a comparison and synthesis of the methodological procedure of Hennigian phylogenetic systematics with new numerical methods, to depict what these methods have in common and where they differ, and to sear...
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 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: Briefings in Bioinformatics
سال: 2000
ISSN: 1467-5463,1477-4054
DOI: 10.1093/bib/1.2.201