A co-evolutionary relationship exists between Endoraecium (Pucciniales) and its Acacia hosts in Australia.
Persoonia, 2015/12;35:50-62.
McTaggart AR[1], Doungsa-Ard C[2], Geering AD[3], Aime MC[4], Shivas RG[5]
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PMID: 26823628DOI: 10.3767/003158515X687588
Impact factor: 11.658
Abstract
Endoraecium is a genus of rust fungi that infects several species of Acacia in Australia, South-East Asia and Hawaii. This study investigated the systematics of Endoraecium from 55 specimens in Australia based on a combined morphological and molecular approach. Phylogenetic analyses were conducted on partitioned datasets of loci from ribosomal and mitochondrial DNA. The recovered molecular phylogeny supported a recently published taxonomy based on morphology and host range that divided Endoraecium digitatum into five species. Spore morphology is synapomorphic and there is evidence Endoraecium co-evolved with its Acacia hosts. The broad host ranges of E. digitatum, E. parvum, E. phyllodiorum and E. violae-faustiae are revised in light of this study, and nine new species of Endoraecium are described from Australia based on host taxonomy, morphology and phylogenetic concordance.
Keywords: Atelocauda; Mimosoideae; Racospermyces; Raveneliaceae; Uredinales; endocyclic rusts
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