The classical model of concerted evolution states that hundreds to thousands of ribosomal
DNA (rDNA) units undergo homogenization, making the multiple copies of the individual …

One of the most popular sequences for phylogenetic inference at the generic and
infrageneric levels in plants is the internal transcribed spacer (ITS) region of the 18S–5.8 S …

A molecular phylogenetic analysis of the Andean genus Tarasa (Malvaceae) and related
genera yielded unexpected results regarding generic boundaries, the origins of polyploidy …

The internal transcribed spacers (ITS) of the nuclear ribosomal 18S–5.8 S–26S cistron
continue to be the most popular non-plastid region for species-level phylogenetic studies of …

Hybridization of parasites is an emerging public health concern in our changing world.
Hybridization and introgression in parasites and pathogens can have major impacts on the …

Many early reports of ITS region (ITS 1, 5.8 S, and ITS 2) variation in flowering plants
indicated that nrDNA arrays within individuals are homogeneous. However, both older and …

Background Schistosomes are dioecious parasitic flatworms, which live in the vasculature of
their mammalian definitive hosts. They are the causative agent of schistosomiasis, a disease …

Schistosomiasis is a disease of great medical and veterinary importance in tropical and
subtropical regions, caused by parasitic flatworms of the genus Schistosoma (subclass …

Twenty-nine Malus species, 12 M. domestica cultivars and representative outgroup taxa
were chosen for sequence analysis of the internal transcribed spacer of nuclear ribosomal …

The nuclear ribosomal locus coding for the large subunit is represented in tandem arrays in
the plant genome. These consecutive gene blocks, consisting of several regions, are widely …