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Walter S. Sheppard

Researcher at Washington State University

Publications -  91
Citations -  5771

Walter S. Sheppard is an academic researcher from Washington State University. The author has contributed to research in topics: Honey bee & Apidae. The author has an hindex of 35, co-authored 87 publications receiving 5317 citations. Previous affiliations of Walter S. Sheppard include Agricultural Research Service & University of Illinois at Urbana–Champaign.

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Insights into social insects from the genome of the honeybee Apis mellifera

George M. Weinstock, +228 more
- 26 Oct 2006 - 
TL;DR: The genome sequence of the honeybee Apis mellifera is reported, suggesting a novel African origin for the species A. melliferA and insights into whether Africanized bees spread throughout the New World via hybridization or displacement.
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Thrice Out of Africa: Ancient and Recent Expansions of the Honey Bee, Apis mellifera

TL;DR: The results indicate that A. mellifera originated in Africa and expanded into Eurasia at least twice, resulting in populations in eastern and western Europe that are geographically close but genetically distant.
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Sub-lethal effects of pesticide residues in brood comb on worker honey bee (Apis mellifera) development and longevity.

TL;DR: This study is the first to demonstrate sub-lethal effects on worker honey bees from pesticide residue exposure from contaminated brood comb, and longer development time for bees may provide a reproductive advantage for parasitic Varroa destructor mites.
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Molecular phylogenetics of honey bee subspecies (Apis mellifera L.) inferred from mitochondrial DNA sequence.

TL;DR: A mitochondrial DNA region encompassing part of the NADH dehydrogenase subunit 2 and isoleucine transfer RNA genes was PCR amplified, cloned, and sequenced for 14 morphometrically identified Apis mellifera subspecies and the New World "Africanized" honeybee to infer phylogenetic relationships and test hypotheses concerning subspecies origin, dispersion, and biogeography.
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Phylogenetic relationships of honey bees (Hymenoptera:Apinae:Apini) inferred from nuclear and mitochondrial DNA sequence data

TL;DR: Two different genomic regions (ND2 mitochondrial gene and EF1-alpha intron) were PCR amplified, cloned and sequenced for the ten known honey bee species collected within their natural range distribution to investigate phylogenetic relationships within Apis.