2020
DOI: 10.1186/s12864-020-07111-x
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Genome-wide patterns of differentiation within and among U.S. commercial honey bee stocks

Abstract: Background The population genetics of U.S. honey bee stocks remain poorly characterized despite the agricultural importance of Apis mellifera as the major crop pollinator. Commercial and research-based breeding programs have made significant improvements of favorable genetic traits (e.g. production and disease resistance). The variety of bees produced by artificial selection provides an opportunity to characterize the genetic diversity and regions of the genome undergoing selection in commonly … Show more

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Cited by 25 publications
(38 citation statements)
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“…Californian non-AHB feral and commercial populations have genetic diversity similar to European M and C lineage source populations (Cridland et al 2018); AHB have similar or greater genetic diversity compared to native A lineage honey bees (Bozek et al 2018;Cridland et al 2018); and within Texas and Arizona, genetic diversity increased following the introduction and spread of introgression with AHBs despite the loss of genetic diversity from Varroa (Bozek et al 2018). Comparisons of genetic diversity of commonly used US commercial stocks to populations in Europe also suggest similar if not higher levels of genetic diversity (Saelao et al 2020). This observation comes with several critical considerations.…”
Section: Genomic Data Suggest High Standing Genetic Diversity In Us Honey Bees But Cannot Yet Identify Where That Variation Came Frommentioning
confidence: 85%
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“…Californian non-AHB feral and commercial populations have genetic diversity similar to European M and C lineage source populations (Cridland et al 2018); AHB have similar or greater genetic diversity compared to native A lineage honey bees (Bozek et al 2018;Cridland et al 2018); and within Texas and Arizona, genetic diversity increased following the introduction and spread of introgression with AHBs despite the loss of genetic diversity from Varroa (Bozek et al 2018). Comparisons of genetic diversity of commonly used US commercial stocks to populations in Europe also suggest similar if not higher levels of genetic diversity (Saelao et al 2020). This observation comes with several critical considerations.…”
Section: Genomic Data Suggest High Standing Genetic Diversity In Us Honey Bees But Cannot Yet Identify Where That Variation Came Frommentioning
confidence: 85%
“…to several million for honey bees-provide accurate estimates of genetic diversity for colonies and populations, can increase the accuracy of ancestral sorting, and can allow one to tease apart the roles of demography and selection in contributing to genetic diversity in regions across the genome (Calfee et al 2020;Cridland et al 2018;Harpur et al 2012;Mikheyev et al 2015;Saelao et al 2020;Wallberg et al 2014). There have been five such studies focusing on honey bees in the mainland United States (Bozek et al 2018;Calfee et al 2020;Cridland et al 2018;Mikheyev et al 2015;Saelao et al 2020) (Fig. 3).…”
Section: Genomic Data Suggest High Standing Genetic Diversity In Us Honey Bees But Cannot Yet Identify Where That Variation Came Frommentioning
confidence: 99%
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“…While the exact sources cannot be named here due to privacy concerns, they generally represented Minnesota Hygienic (MHY), POL-line (POL), Russian (RUS) bees, as well as “Italians” from California (ITC) and Georgia (ITG) and “Carniolans” from Hawaii (CAH). These stocks were selected to represent a wide variety of commercially available American stocks [ 41 ]. While the former three represent breeding efforts against Varroa , systematic comparisons of these stocks in other traits, such as vitality or productivity, have not yet been conducted.…”
Section: Methodsmentioning
confidence: 99%
“…Although the global expansion of A. mellifera is due to its cultivation by humans, the species is highly adaptable, and several distinct subspecies have naturally evolved across its wide geographic distribution [ 39 ]. Through a combination of targeted selection/breeding and less deliberate introduction of genetic material from several of its naturally evolved subspecies into the managed apicultural population of North America, considerable genetic variation is represented in these commercial honey bees [ 40 , 41 ]. Genetic variation within colonies is promoting disease resistance [ 42 ], potentially by enhancing division of labor and thus social immunity.…”
Section: Introductionmentioning
confidence: 99%