@ARTICLE{TreeBASE2Ref24765, author = {Alistair Ross McTaggart and Roger G Shivas and Magriet A van der Nest and Jolanda Roux and Brenda D Wingfield and Michael J Wingfield}, title = {Host jumps shaped the diversity of extant rust fungi (Pucciniales) }, year = {2015}, keywords = {calibration by host-parasite co-evolution, host jumps, host-parasite evolution, Mikronegeriaceae, molecular dating, Puccinia psidii, Pucciniales, Uredinales}, doi = {10.1111/nph.13686}, url = {http://}, pmid = {}, journal = {New Phytologist}, volume = {}, number = {}, pages = {}, abstract = { The aim of this study was to determine the evolutionary time line for rust fungi and date key speciation events using a molecular clock. Evidence is provided that supports a contempo- rary view for a recent origin of rust fungi, with a common ancestor on a flowering plant.  Divergence times for > 20 genera of rust fungi were studied with Bayesian evolutionary analyses. A relaxed molecular clock was applied to ribosomal and mitochondrial genes, cali- brated against estimated divergence times for the hosts of rust fungi, such as Acacia (Fabaceae), angiosperms and the cupressophytes.  Results showed that rust fungi shared a most recent common ancestor with a mean age between 113 and 115 million yr. This dates rust fungi to the Cretaceous period, which is much younger than previous estimations. Host jumps, whether taxonomically large or between host genera in the same family, most probably shaped the diversity of rust genera. Likewise, species diversified by host shifts (through coevolution) or via subsequent host jumps. This is in contrast to strict coevolution with their hosts.  Puccinia psidii was recovered in Sphaerophragmiaceae, a family distinct from Raveneli- aceae, which were regarded as confamilial in previous studies.} }

• Go to search
• Citation
• Taxa
• Matrices
• Trees
• Analyses
• 

CiteULike

Delicious

Connotea