TY - JOUR
T1 - Phylogenetic lineages in the Botryosphaeriales: a systematic and evolutionary framework
AU - Slippers, B.
AU - Boissin, E.
AU - Phillips, A.J.L.
AU - Groenewald, J.Z.
AU - Lombard, L.
AU - Wingfield, M.J.
AU - Postma, A.
AU - Burgess, T.
AU - Crous, P.W.
N1 - Reporting year: 2013
PY - 2013
Y1 - 2013
N2 - The order Botryosphaeriales represents several ecologically diverse fungal families that are commonly isolated as endophytes or pathogens from various woody hosts. The taxonomy of members of this order has been strongly influenced by sequence-based phylogenetics, and the abandonment of dual nomenclature. In this study, the phylogenetic relationships of the genera known from culture are evaluated based on DNA sequence data for six loci (SSU, LSU, ITS, EF1, BT, mtSSU). The results make it possible to recognise a total of six families. Other than the Botryosphaeriaceae (17 genera), Phyllostictaceae (Phyllosticta) and Planistromellaceae (Kellermania), newly introduced families include Aplosporellaceae (Aplosporella and Bagnisiella), Melanopsaceae (Melanops), and Saccharataceae (Saccharata). Furthermore, the evolution of morphological characters in the Botryosphaeriaceae were investigated via analysis of phylogeny-trait association. None of the traits presented a significant phylogenetic signal, suggesting that conidial and ascospore pigmentation, septation and appendages evolved more than once in the family. Molecular clock dating on radiations within the Botryosphaeriales based on estimated mutation rates of the rDNA SSU locus, suggests that the order originated in the Cretaceous period around 103 (45-188) mya, with most of the diversification in the Tertiary period. This coincides with important periods of radiation and spread of the main group of plants that these fungi infect, namely woody Angiosperms. The resulting host-associations and distribution could have influenced the diversification of these fungi. TAXONOMIC NOVELTIES: New families - Aplosporellaceae Slippers, Boissin & Crous, Melanopsaceae Phillips, Slippers, Boissin & Crous, Saccharataceae Slippers, Boissin & Crous.
AB - The order Botryosphaeriales represents several ecologically diverse fungal families that are commonly isolated as endophytes or pathogens from various woody hosts. The taxonomy of members of this order has been strongly influenced by sequence-based phylogenetics, and the abandonment of dual nomenclature. In this study, the phylogenetic relationships of the genera known from culture are evaluated based on DNA sequence data for six loci (SSU, LSU, ITS, EF1, BT, mtSSU). The results make it possible to recognise a total of six families. Other than the Botryosphaeriaceae (17 genera), Phyllostictaceae (Phyllosticta) and Planistromellaceae (Kellermania), newly introduced families include Aplosporellaceae (Aplosporella and Bagnisiella), Melanopsaceae (Melanops), and Saccharataceae (Saccharata). Furthermore, the evolution of morphological characters in the Botryosphaeriaceae were investigated via analysis of phylogeny-trait association. None of the traits presented a significant phylogenetic signal, suggesting that conidial and ascospore pigmentation, septation and appendages evolved more than once in the family. Molecular clock dating on radiations within the Botryosphaeriales based on estimated mutation rates of the rDNA SSU locus, suggests that the order originated in the Cretaceous period around 103 (45-188) mya, with most of the diversification in the Tertiary period. This coincides with important periods of radiation and spread of the main group of plants that these fungi infect, namely woody Angiosperms. The resulting host-associations and distribution could have influenced the diversification of these fungi. TAXONOMIC NOVELTIES: New families - Aplosporellaceae Slippers, Boissin & Crous, Melanopsaceae Phillips, Slippers, Boissin & Crous, Saccharataceae Slippers, Boissin & Crous.
U2 - 10.3114/sim0020
DO - 10.3114/sim0020
M3 - Article
SN - 0166-0616
VL - 76
SP - 31
EP - 49
JO - Studies in Mycology
JF - Studies in Mycology
IS - 1
ER -