caa a22 4500 477082319 CHVBK 20180405111453.0 cr unu---uuuuu 170330e19960601xx s 000 0 eng 10.1007/BF01969721 doi (NATIONALLICENCE)springer-10.1007/BF01969721 Biochemical genetic differentiation among seed chalcid species of genus Megastigmus (Hymenoptera: Torymidae) [Elektronische Daten] [G. Roux, A. Roques] The degree of genetic variability and the taxonomic status of adults of 14 seed chalcid species of the genusMegastigmus was analyzed using electrophoresis on horizontal starch gel. Variability of chalcid populations with host tree was observed in 21 host species. A total of 13 enzyme loci were considered. Seven of the loci were found to be polymorphic. The electrophoretic data strongly supported the adaptation of each chalcid species to a limited number of congeneric hosts, and confirmed the morphologically-based taxonomy of the genus. The resulting dendrogram separated the chalcid species into three distinct groups, infesting 1) Pinaceae spp., 2) Cupressaceae spp., and 3) Angiosperm spp., respectively. The highest level of overall genetic similarity was observed among the chalcid populations infesting conifers of the generaPseudotsuga andAbies. The genetic identity values observed among populations infesting 5 differentAbies species tended to reflect the occurrence of conspecific populations rather than that of distinct chalcid species. Genetic identity was similarly important among the chalcid species infesting seeds of Cupressaceae. By contrast, a large genetic distance was observed between two seed chalcids attacking a same host,Rosa montana. Birkhäuser Verlag, 1996 Seed chalcids nationallicence Megastigmus nationallicence hymenoptera nationallicence isozymes nationallicence phylogeny nationallicence Roux G. Zoologie Forestière, INRA-CRF, Ardon, F-45160, Olivet, (France) aut Roques A. Zoologie Forestière, INRA-CRF, Ardon, F-45160, Olivet, (France) aut Experientia Birkhäuser-Verlag 52/6(1996-06-01), 522-530 0014-4754 52:6<522 1996 52 18 https://doi.org/10.1007/BF01969721 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01969721 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Roux G. Zoologie Forestière, INRA-CRF, Ardon, F-45160, Olivet, (France) aut NATIONALLICENCE 700 1- Roques A. Zoologie Forestière, INRA-CRF, Ardon, F-45160, Olivet, (France) aut NATIONALLICENCE 773 0- Experientia Birkhäuser-Verlag 52/6(1996-06-01), 522-530 0014-4754 52:6<522 1996 52 18 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer