01953nas a2200157   4500008004100000022001300041245009400054210006900148300001200217490000700229520141100236100002301647700002501670700001801695856008201713       2011                        eng d  a0300325600aTowards a molecular phylogeny of the fungus gnat genus Boletina (Diptera: Mycetophilidae)0 aTowards a molecular phylogeny of the fungus gnat genus Boletina   a272-2810 v403 aBoletina is a species rich genus of fungus gnats (Diptera: Mycetophilidae) with a mainly Holarctic distribution. The systematics within the genus has gained little attention and this is a first attempt to shed some light over the systematics of Boletina and to test the segregation of the genera Saigusaia and Aglaomyia from Boletina. The nuclear marker 28S and mitochondrial 16S, COI and CytB were amplified and sequenced for 23 taxa that were analysed separately and together with a broad sample of outgroup taxa obtained from GenBank, where also 18S sequences were added. Phylogenies were estimated using maximum likelihood, Bayesian inference and parsimony. We strengthen the hypothesized sister-group relationship between Docosia and Boletina, but the genus Boletina as currently delimited appears to be paraphyletic and nested in a clade together with Aglaomyia, Coelosia and Gnoriste. The genus Saigusaia, on the other hand, seems to be well separated from Boletina. The Boletina erythropyga species group is consistently found as a distinct basal clade within Boletina s.l. The results obtained are otherwise ambiguous both for the taxa in focus and in some analyses globally with a statistically supported total breakdown of the traditional higher classification into tribes, subfamilies and even families. Interestingly, this breakdown almost disappeared when additional 18S sequences were added.1 aMartinsson, Svante1 aKjærandsen, Jostein1 aSundberg, Per  uhttp://onlinelibrary.wiley.com/doi/10.1111/j.1463-6409.2011.00474.x/suppinfo#00539nas a2200145   4500008004100000245009300041210006900134300001200203490000700215100001500222700001900237700002100256700002100277856009500298       1993                        eng d00aThe dipteran sperm tail: ultrastructural characteristics and phylogenetic considerations0 adipteran sperm tail ultrastructural characteristics and phylogen  a193-2020 v221 aDallai, R.1 aBellon, P., L.1 aLanzavecchia, S.1 aAfzelius, B., A.  uhttp://www.online-keys.net/sciaroidea/1991_2000/Dallai_et_al_1993_Sperm_tail_Phylogeny.pdf01848nas a2200157   4500008004100000245008500041210006900126300001200195490000700207520131100214100001801525700002301543700002501566700001901591856008001610       2007                        eng d00aMolecular phylogeny of the fungus gnat tribe Exechiini (Mycetophilidae, Diptera)0 aMolecular phylogeny of the fungus gnat tribe Exechiini Mycetophi  a327-3350 v363 aThe phylogenetic relationships within the fungus gnat tribe Exechiini have been left unattended for many years. Recent studies have not shed much light on the intergeneric relationship within the tribe. Here the first attempt to resolve the phylogeny of the tribe Exechiini using molecular markers is presented. The nuclear 18S and the mitochondrial 16S, and cytochrome oxidase subunit I (COI) genes were successfully sequenced for 20 species representing 15 Exechiini genera and five outgroup genera. Bayesian, maximum parsimony and maximum likelihood analyses revealed basically congruent tree topologies and the monophyly of Exechiini, including the genus Cordyla, is confirmed. The molecular data corroborate previous morphological studies in several aspects. Cordyla is found in a basal clade together with Brachypeza, Pseudorymosia and Stigmatomeria. The splitting of the genera Allodiopsis s.l. and Brevicornu s.l. as well as the sistergroup relationship of Exechia and Exechiopsis is also supported. The limited phylogenetic information provided by morphological characters is mirrored in the limited resolution of the molecular markers used in this study. Short internal and long-terminal branches obtained may indicate a rapid radiation of the Exechiini genera during a short evolutionary period.1 aRindal, Eirik1 aSøli, Geir, E. E.1 aKjærandsen, Jostein1 aBachmann, Lutz  uhttp://www.online-keys.net/sciaroidea/2000_/Rindal_et_al_2007_Exechiini.pdf