Identification of pteridines in the firebug, Pyrrhocoris apterus (L.) (Heteroptera, Pyrrhocoridae) by high -performance liquid chromatography

Cream and albinotic - two new mutations affecting body colour in Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae)

“…It is very probable that both the alb and cr mutations, described for the first time in the present paper, also negatively effect the biosynthesis and/or deposition of erythropterine and other pteridines in epidermal cells that are responsible for the dark yellow and red colouration of the body of wild-type individuals of this bug, in a similar way to the wh and yw mutations of P. apterus (Porcar et al, 1996;Bell et al, 1997). Only a few body-colour mutations are reported for Heteroptera and very little is known about pteridine biosynthesis, since only a few species have been studied in this respect (Berridge, 1965;Merlini & Nasini, 1966;Smith & Forrest, 1969;Lawrence, 1970;Halfenberg & Stein, 1971;Hollweg, 1972;Smith & Forrest, 1976;Melber & Schmidt, 1992, 1994Shimizu & Kawasaki, 2001).…”

“…To date, the following pigment mutations and genetic strains of P. apterus are described and analysed: yellow (yw) (Socha, 1984;Sláma, 1998); reddish lobes (rl 17) (Socha, 1984); melanotic (m) (Socha, 1984;Sláma, 1998); mosaic (mo) (Socha, 1987b); Pale (Pa) (Socha, 1988a); Apricot (Ap) (Socha, 1988b) and yolk body (yb) (Socha, 1997). These mutations affect the biosynthesis and deposition of pterines in epidermal cells or melanine pigments in the cuticle of P. apterus (Socha & N mec, 1992(Socha & N mec, , 1996Porcar et al, 1996;Bel et al, 1997). The yw, m, and yb mutations are inherited as single autosomal recessives, Pa and Ap as autosomal dominants, and the mo trait behaves as an unstable sex-linked recessive and is probably transposon-mediated .…”

“…mutations affecting the course of choriogenesis (Socha, 1988c), embryogenesis (Socha & Matolín, 1985), metamorphosis (Socha, 1987a), wing length (Hon k, 1986;Socha et al, 1993;Socha, 1995), and diapause behaviour (Socha & Hodková, 1994). Despite the fact that the formal genetics of P. apterus is just beginning to be studied and it is necessary to isolate and characterize other visible genetic markers in this species, some of the body-colour mutations have been already successfully used as markers for studying hormone persistence in the body (Sláma & Socha, 1979), genetic control of biosynthesis of pteridines (Socha & N mec, 1992(Socha & N mec, , 1996Porcar et al, 1996;Bel et al, 1997), determination of sperm utilization in multiple mating of females (Socha, 1993) and sperm competition (Schöfl & Taborsky, 2002;Socha, unpubl. data).…”

Preparation of chitosan‐graft‐(β‐cyclodextrin) based sol‐gel stationary phase for open‐tubular capillary electrochromatography

“…Pteridines are a class of compounds excreted in urine, the levels of which are found to elevate significantly in tumor‐related diseases. So far, only a few literatures have been reported using HPLC and CE to analyze pteridines. CD is cyclic oligosaccharindes, which has 3D structures displaying an open cavity.…”

Phylogeny of the New World Dysdercus (Insecta: Hemiptera: Pyrrhocoridae) and Evolution of their Colour Patterns

“…There are no data on epidermal pigments in the New World Dysdercus species, but comparative surveys exist for epidermal pigments in several Old World Dysdercus species Schmidt, 1992, 1994), and in wild-type and six pigment mutants of the related Palearctic Pyrrhocoris apterus (Linnaeus, 1758) Nmec, 1992, 1996;Porcar et al, 1996). It is important for our purposes that all phenotypes of P. apterus, however different in pigmentation and visual display, differ predominantly in quantitative amounts of the same pteridines.…”