Life Sciences Commons^™

Phylogeny Of The Subfamilies Of Ichneumonidae (Hymenoptera), Andrew M.R. Bennett, Sophie Cardinal, Ian D. Gauld, David B. Wahl

Biology Faculty Publications

A combined morphological and molecular phylogenetic analysis was performed to evaluate the subfamily relationships of the parasitoid wasp family Ichneumonidae (Hymenoptera). Data were obtained by coding 135 morphological and 6 biological characters for 131 exemplar species of ichneumonids and 3 species of Braconidae (the latter as outgroups). The species of ichneumonids represent all of the 42 currently recognized subfamilies. In addition, molecular sequence data (cytochrome oxidase I “DNA barcoding” region, the D2 region of 28S rDNA and part of the F2 copy of elongation factor 1-alpha) were obtained from specimens of the same species that were coded for morphology (1309 …

Congruent Phylogenetic Relationships Of Melaphidina Aphids (Aphididae: Eriosomatinae: Fordini) According To Nuclear And Mitochondrial Dna Data With Taxonomic Implications On Generic Limits, Zhumei Ren, Carol D. Von Dohlen, A. J. Harris, Rebecca B. Dikow, Xu Su, Jun Wen

Biology Faculty Publications

Melaphidina aphids (Rhus-gall aphids; Eriosomatinae: Fordini) comprise five genera from eastern Asia and one monotypic genus from eastern North America. Melaphidina are unique in feeding on plant species of Rhus subgenus Rhus (Anacardiaceae), on which they form galls during the summer. The phylogenetic relationships among some species of Melaphidina aphids remain controversial. In this study, we sought to resolve the backbone phylogeny of Melaphidina aphids by sampling 15 accessions representing all six genera, all species, and all subspecies except Meitanaphis microgallis using 20 gene regions: five nuclear genes as well as 13 protein-coding genes and two rRNA genes …

Phylogeny And Population Genetic Analyses Reveals Cryptic Speciation In The Bombus Fervidus Species Complex (Hymenoptera: Apidae), Jonathan B. Koch, Juanita Rodriguez, James P. Pitts, James P. Strange

Ecology Center Publications

Bumble bees (Bombus Latrielle) are significant pollinators of flowering plants due to their large body size, abundant setae, and generalist foraging strategies. However, shared setal coloration patterns among closely and distantly related bumble bee species makes identification notoriously difficult. The advent of molecular genetic techniques has increased our understanding of bumble bee evolution and taxonomy, and enables effective conservation policy and management. Individuals belonging to the North American Bombus fervidus species-complex (SC) are homogenous in body structure but exhibit significant body color phenotype variation across their geographic distribution. Given the uncertainty of the genealogical boundaries within the SC, some …

South American Leaf-Cutter Bees (Genus Megachile) Of The Subgenera Rhyssomegachile And Zonomegachile, With Two New Subgenera (Hymenoptera: Megachilidae), Víctor H. González, Terry Griswold, Michael S. Engel

All PIRU Publications

Leaf-cutter bees (genus Megachile Latreille) are among the most common and diverse group of bees. However, the identity and taxonomic placement of many species are problematic and species identification is often difficult. Some species are known only from a single specimen or from one of the sexes, and identification keys are not available for many groups. We address these taxonomic issues for the subgenera Rhyssomegachile Mitchell and Zonomegachile Mitchell, two poorly known South American lineages of leaf-cutter bees. We provide comparative diagnoses, redescriptions, illustrated identification keys, new geographical records, and designate needed neotypes for Megachile cara Mitchell, M. gigas Schrottky, …

Deciphering The Biology Of Cryptophyllachora Eurasiatica Gen. Et Sp. Nov., An Often Cryptic Pathogen Of An Allergenic Weed, Ambrosia Artemisiifolia, Levente Kiss, Gábor M. Kovács, Károly Bóka, Gyula Bohár, Krisztina Varga Bohárné, Márk Z. Németh, Susumu Takamatsu, Hyeon-Dong Shin, Vera Hayova, Claudia Nischwitz, Marion K. Seier, Harry C. Evans, Paul F. Cannon, Gavin James Ash, Roger G. Shivas, Heinz Müller-Schärer

Biology Faculty Publications

A little known, unculturable ascomycete, referred to as Phyllachora ambrosiae, can destroy the inflorescences of Ambrosia artemisiifolia, an invasive agricultural weed and producer of highly allergenic pollen. The fungus often remains undetectable in ragweed populations. This work was conducted to understand its origin and pathogenesis, a prerequisite to consider its potential as a biocontrol agent. The methods used included light and transmission electron microscopy, nrDNA sequencing, phylogenetic analyses, artificial inoculations, and the examination of old herbarium and recent field specimens from Hungary, Korea, Ukraine and USA. The Eurasian and the North American specimens of this fungus were to …

Teaching Species, Mark W. Ellis, Paul G. Wolf

Biology Faculty Publications

A clear understanding of the term "species" is fundamental to the subject of evolution. However, introductory textbooks often fail to address this topic until one of the later chapters, after having used the term species in all preceding chapters. Furthermore, definitions of terms critical to a clear understanding of this subject are often vague or absent in chapters on species concepts. We feel the popular notion of a "species problem" has been unnecessarily inflated by this less-than-effective educational approach. Clearly addressing this essential subject at the beginning of a course on evolution will prepare students to learn the details and …

Introduction To Taxonomy, Larry A. Sagers, Gretchen Campbell

All Archived Publications

No abstract provided.

Triticeae: A Tribe For Food, Feed And Fun, Roland Von Bothmer, Björn Salomon

Herbarium Publications

Triticeae is an important tribe in the grass family, Poaceae. It contains the cereals wheat, rye, triticale, and barley as well as a large number of wild species, some of which are utilized as forage grasses. The tribe combines all kind of biological mechanisms and genetic systems: diploids and polyploids; annuals and perennials, inbreeders and outbreeders, and even apomicts. Due to this large variation Triticeae is an excellent model group for research in genetics, plant breeding, genetic diversity, taxonomy, and speciation in plants.

Triticeae is distributed in almost all temperate areas of the world and consists of some 350-450 species …

Taxonomy In Aspen: Ecology And Management In The Western United States, Kimball T. Harper, John D. Shane, John R. Jones

Aspen Bibliography

No abstract provided.

Genetics Of Quaking Aspen, Dean W. Einspahr, Lawson L. Winton

Aspen Bibliography

No abstract provided.

Notes On The Biology Of Emphoropsis Pallida Timberlake, George E. Bohart, Phillip F. Torchio, Y. Maeta, R. W. Rust

All PIRU Publications

No abstract provided.

Phenetic Affinities In Small Populations Of New York Aspens, C.M. Harrison, F.A. Valentine

Aspen Bibliography

According to Anderson (1962) much of the variation in wild populations of plants is attributable to occasional introgressive hybridization.

A New Species Of Dufourea From California *Hymenoptera: Halictidae), George E. Bohart

All PIRU Publications

No abstract provided.

Sex Characters Of Larval Bees (Hymenoptera: Apoidea), Ross A. Nielsen, George E. Bohart

All PIRU Publications

No abstract provided.

A Revision Of The Larropsis Subgenus Ancistroma Fox (Hymenoptera: Sphecidae), R. M. Bohart, George E. Bohart

All PIRU Publications

No abstract provided.

Kinds Of Bees, George E. Bohart, William P. Nye

All PIRU Publications

No abstract provided.

New North American Bees Of The Genus Dufourea (Apoidea: Halictidae) Part Iii, George E. Bohart

All PIRU Publications

No abstract provided.

New North American Bees Of The Genus Dufourea (Apoidea: Halictidae) Part Ii, George E. Bohart

All PIRU Publications

No abstract provided.

The Sarcophagidae Of Guam (Diptera), David G. Hall, Geroge E. Bohart

All PIRU Publications

No abstract provided.

The Phorid Flies Of Guam, George E. Bohart

All PIRU Publications

No abstract provided.

New North American Bees Of The Genus Dufourea (Apoidea; Halictidae) Part I, George E. Bohart

All PIRU Publications

No abstract provided.

Three New Muscoid Flies From Guam, George E. Bohart, J. Linsley Gressitt

All PIRU Publications

No abstract provided.

A Synopsis Of The Genus Micralictoides (Hymenoptera, Apoidea), George E. Bohart

All PIRU Publications

No abstract provided.

A Review Of The Genus Physocephala Of The Western United States (Diptera, Conopidae), George E. Bohart

All PIRU Publications

No abstract provided.

Synopsis Of The Genus Dalmannia In North America (Diptera, Conopidae), George E. Bohart

All PIRU Publications

No abstract provided.