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Redheaded pine sawfly

Catherine R Linnen, Claire T O'Quin, Taylor Shackleford, Connor R Sears, Carita Lindstedt
Pigmentation has emerged as a premier model for understanding the genetic basis of phenotypic evolution, and a growing catalog of color loci is starting to reveal biases in the mutations, genes, and genetic architectures underlying color variation in the wild. However, existing studies have sampled a limited subset of taxa, color traits, and developmental stages. To expand the existing sample of color loci, we performed quantitative trait locus (QTL) mapping analyses on two types of larval pigmentation traits that vary among populations of the redheaded pine sawfly ( Neodiprion lecontei ): carotenoid-based yellow body color and melanin-based spotting pattern...
March 1, 2018: Genetics
John W Terbot, Ryan L Gaynor, Catherine R Linnen
Aggregations are widespread across the animal kingdom, yet the underlying proximate and ultimate causes are still largely unknown. An ideal system to investigate this simple, social behavior is the pine sawfly genus Neodiprion, which is experimentally tractable and exhibits interspecific variation in larval gregariousness. To assess intraspecific variation in this trait, we characterized aggregative tendency within a single widespread species, the redheaded pine sawfly (N. lecontei). To do so, we developed a quantitative assay in which we measured interindividual distances over a 90-min video...
June 2017: Ecology and Evolution
Robin K Bagley, Vitor C Sousa, Matthew L Niemiller, Catherine R Linnen
Divergent host use has long been suspected to drive population differentiation and speciation in plant-feeding insects. Evaluating the contribution of divergent host use to genetic differentiation can be difficult, however, as dispersal limitation and population structure may also influence patterns of genetic variation. In this study, we use double-digest restriction-associated DNA (ddRAD) sequencing to test the hypothesis that divergent host use contributes to genetic differentiation among populations of the redheaded pine sawfly (Neodiprion lecontei), a widespread pest that uses multiple Pinus hosts throughout its range in eastern North America...
February 2017: Molecular Ecology
R C Wilkinson, A H Chappelka, M E Kraemer, H C Coppel, F Matsumura
Field tests using the sawfly pheromone [3,7-dimethylpentadecan-2-ol acetate with (-)-erythro configuration (2S,3S)] were conducted near Gainesville, Florida, during 1978-1981 to determine the attraction ofNeodiprion lecontei males to baited traps with respect to time of year and time of day. Greatest numbers of males were caught during May, July, and September in traps placed within a pine stand from July 1978 to July 1979. Males were only caught between 1400 and 2000 hr on 10 dates in June and 10 dates in September-October 1980, and 10 dates in June 1981, with greatest catches from 1600-1800 hr...
February 1982: Journal of Chemical Ecology
Hilary A M Lauzon, Christopher J Lucarotti, Peter J Krell, Qili Feng, Arthur Retnakaran, Basil M Arif
All fully sequenced baculovirus genomes, with the exception of the dipteran Culex nigripalpus nucleopolyhedrovirus (CuniNPV), have previously been from Lepidoptera. This study reports the sequencing and characterization of a hymenopteran baculovirus, Neodiprion lecontei nucleopolyhedrovirus (NeleNPV), from the redheaded pine sawfly. NeleNPV has the smallest genome so far published (81,755 bp) and has a GC content of only 33.3%. It contains 89 potential open reading frames, 43 with baculovirus homologues, 6 identified by conserved domains, and 1 with homology to a densovirus structural protein...
July 2004: Journal of Virology
R F Fowler, I Millers, L F Wilson
No abstract text is available yet for this article.
February 1973: Journal of Economic Entomology
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