02191nas a2200241   4500008004100000020001400041245010200055210006900157260002900226300001200255490000800267520140900275653002301684653001501707653002801722653003301750653002001783653002301803100002101826700002101847700002601868856005501894       2012                        eng d  a1095-833900aRadiations and key innovations in an early branching angiosperm lineage (Annonaceae; Magnoliales)0 aRadiations and key innovations in an early branching angiosperm   bBlackwell Publishing Ltd  a117-1340 v1693 a<p>Biologists are fascinated by species-rich groups and have attempted to discover the causes for their abundant diversification. Comprehension of the causes and mechanisms underpinning radiations and detection of their frequency will contribute greatly to the understanding of the evolutionary origin of biodiversity and its ecological structure. A dated and well-resolved phylogenetic tree of Annonaceae was used to study diversification patterns in the family in order to identify factors that drive speciation and the evolution of morphological (key) characters. It was found that, except for Goniothalamus, the largest genera in the family are not the result of radiations. Furthermore, the difference in species numbers between subfamilies Annonoideae (former long branch clade) and Malmeoideae (former short branch clade) cannot be attributed to significant differences in the diversification rate. Most of the speciation in Annonaceae is not distinguishable from a random branching process (i.e. chance), and no special explanations are therefore necessary for the distribution of species richness across the major part of the phylogenetic tree for Annonaceae. Only for a small number of clades can key innovations be invoked to explain the elevated rate of diversification.&nbsp;&copy; 2012 The Linnean Society of London, Botanical Journal of the Linnean Society, 2012, 169, 117&ndash;134.</p>
10aadaptive radiation10arate shift10asister-group comparison10astochastic branching pattern10atemporal method10atopological method1 aErkens, Roy, H J1 aChatrou, Lars, W1 aCouvreur, Thomas, L P  uhttp://dx.doi.org/10.1111/j.1095-8339.2012.01223.x01914nas a2200217   4500008004100000020001400041245005100055210004900106260002900155300001000184490000800194520129000202653001801492653001301510653002501523653002501548100002101573700002101594700002601615856005501641       2012                        eng d  a1095-833900aA concise bibliographic overview of Annonaceae0 aconcise bibliographic overview of Annonaceae  bBlackwell Publishing Ltd  a41-730 v1693 aIt is important that taxonomic knowledge is disseminated by those who possess it. This can be carried out via online databases, printed publications or training in taxonomic practice. For Annonaceae, the online database AnnonBase includes all published names of Annonaceae at any rank worldwide. Recently, an updated index to genera, species and infraspecific taxa of Neotropical Annonaceae was published in hard copy. This manuscript contains a concise update to the Bibliography of Annonaceae published by the late E. A. Mennega in 1993. Since his publication, much work has been carried out on systematics and evolution of Annonaceae, with the advent of molecular phylogenetics providing an additional stimulus. Here, however, we concentrate only on taxonomic papers focusing specifically on the description and circumscription of taxa (e.g. revisions, monographs, floras, checklists, descriptions of new species or phylogenetic studies that show monophyly/polyphyly/paraphyly of genera). The index should provide an easy entrance into the most important taxonomic literature on Annonaceae from 1900 onwards for the trained and untrained taxonomist with an interest in Annonaceae. © 2012 The Linnean Society of London, Botanical Journal of the Linnean Society, 2012, 169, 41–73.10adissemination10aoutreach10ataxonomic impediment10ataxonomic literature1 aErkens, Roy, H J1 aMennega, Erik, A1 aWestra, Lubbert Th, Y  uhttp://dx.doi.org/10.1111/j.1095-8339.2012.01232.x