P I Ward's research while affiliated with University of Zurich and other places
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Publications (3)
Scathophaga stercoraria has been used for a large number of studies in animal ecology and evolution. Morphological phylogenetic work on the relationships among flies of the family Scathophagidae in general, and the genus Scathophaga in particular, has led to limited or incomplete conclusions. We addressed these relationships by sequencing 810 base...
Scathophaga stercoraria has been used for a large number of studies in animal ecology and evolution. Morphological phylogenetic work on the relationships among flies of the family Scathophagidae in general, and the genus Scathophaga in particular, has led to limited or incomplete conclusions. We addressed these relationships by sequencing 810 base...
The utility of a mitochondrial DNA (mtDNA) fragment of about 1100 bp (including partial COI and COII sequences and tRNALeu) for evolutionary studies in Muscoidea is discussed. The species investigated are Scathophaga stercoraria, Microprosopa pallidicauda and Trichopalpus fraterna (family Scathophagidae), Musca domestica (Muscidae), Lasiomma semini...
Citations
... The limits of this genus are not clear. As investigations of Bernasconi et al. [2000Bernasconi et al. [ , 2001 showed, 1 2 Figs 1-2. Males of Scathophaga obscura (Fallén) (1) and Scathophaga stercoraria (Linnaeus) (2). ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/272568812830794-1441996877975_Q64/Marco-Bernasconi-3.jpg)
![[object Object]](https://i1.rgstatic.net/ii/profile.image/272328982528006-1441939697136_Q64/Jan-Pawlowski-4.jpg)
![[object Object]](https://i1.rgstatic.net/ii/profile.image/438745997549573-1481616605774_Q64/Claudio-Valsangiacomo-2.jpg)
... This specifically addresses the hypothesis that 4S (over)expression in yellow dung flies may represent a genetic aberration (as suggested for Drosophila melanogaster: Hadorn & Garber, 1944;Mather & Harrison, 1949;Singh et al., 2006;Wexelson, 1928), that is, a stochastic, nonadaptive consequence of systemic developmental instability, rather than an (ancestral) adaptation mediated by life-history trade-offs. We further present comparative data for the closely related and ecologically similar S. suilla (see Bernasconi et al., 2001) to demonstrate that spermathecal overexpression is no necessary consequence of accelerated growth, and that this type of (mostly hidden) developmental plasticity has evolved differently at least in two (but likely more) related taxa (cf. Minder et al., 2005). ...
... DNA barcoding was carried out according to the protocol described by Grzywacz et al. [29]. Particularly, genomic have been used to amplify the COI barcode region in PCR reaction [30]. according to the manufacturer protocol using identical primer set to the initial PCR (5 mmol/L each). ...
