Concept explainers
With improving technology, acquiring DNA
sequences from different organisms becomes
easier each year. With that in mind, some authors
(e.g., Scotland et al. 2003, Systematic Biology
52 [4]: 539–548) have suggested that the use of
morphological data is less important than DNA
sequence data and have called for less emphasis
on the use of comparative morphology in building phylogenies. Other authors maintain that
despite the explosion of molecular data available, morphology still has an important role in
phylogenetics (for examples, see Wiens 2004,
Systematic Biology 53 [4]: 653–661 and Will and
Rubinoff 2004, Cladistics 20 [1]: 47–55). What
are the reasons for and against using morphological data in phylogenetic reconstruction?
When might morphological data be especially
important?
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