Article
Heterogeneity of intron presence or absence in rDNA genes of the lichen species Physcia aipolia and P. stellaris.
Current genetics - 1 Jun 2005
Simon Dawn M, Hummel Cora L, Sheeley Sara L, Bhattacharya Debashish
Abstract excerpt
Intron origin and evolution are of high interest, yet the rates of insertion and loss are unclear. To investigate their spread, we studied ribosomal (r)DNA introns from the closely related lichens Physcia aipolia and P. stellaris. Both taxa are replete with rDNA spliceosomal introns and autocatalytic group I introns, many of which show presence/absence polymorphism when screened with the PCR approach. This...
Read the complete abstract on PubMedTopics
Share this publication in a Topic to start or enrich a Post.