Under a strict phylogenetic approach, only monophyletic taxa are recognized.

Molecular Evolution: A phylogenetic approach.

Embracing genetic and phylogenetic approaches may provide more robust answers to the above questions as well as providing deeper insight into the proximate and ultimate basis for maladaptation in general.

However, it must be made very clear that the systematics and classification of nemerteans are not based on a phylogenetic approach, and recent studies question the classification.

The phylogenetic approach worked beautifully when first applied in 1981 by Dr. Carl Woese of the University of Illinois to a single gene.

Molecular evolution: a phylogenetic approach.

In 2010, a molecular phylogenetic approach by DNA sequencing of Salvia divinorum and a number of related species strongly suggest that the species is not a hybrid.

Matters were becoming increasingly desperate as mycologists using molecular phylogenetic approaches started to ignore the provisions, or interpret them in different ways.

Classification of the Papilionidae (Lepidoptera): a phylogenetic approach.

They are taking a phylogenetic approach, seeking to understand when self-awareness arose in the evolutionary past, whether other species have a sense of self, and if so, how it can be demonstrated.