18 documents found, page 1 of 2

Sort by Issue Date

Genomic insights into middle eastern honey bee subspecies: population structure...

Henriques, Dora; Yadró Garcia, Carlos A.; Honrado, Mónica; Amaral, Joana S.; Muz, Mustafa Necati; Muz, Dilek; Haddad, Nizar; Al Shagour, Banan

The genetic patterns of Middle Eastern A. mellifera subspecies have been understudied, hindering a comprehensive understanding of honey bee evolutionary history. Here, we studied the genetic integrity of five Middle Eastern subspecies across a broad geographical range: Turkey (A. m. anatoliaca, N=97; A. m. caucasia, N=75; A. m. syriaca, N=18), Jordan and Lebanon (A. m. syriaca, N=238 and N=29), Iran (A. m. meda...

Date: 2024   |   Origin: Biblioteca Digital do IPB

Diversity patterns of P450 and ABC transporter genes in 17 honey bee subspecies

Li, Fernanda; Rosa-Fontana, Annelise; Yadró Garcia, Carlos A.; Rufino, José; Verbinnen, Gilles; Graaf, Dirk C.; Smet, Lina de; Pinto, M. Alice

Honey bees (Apis mellifera) inhabit a vast geographical range, spanning diverse natural and agricultural ecosystems. They are exposed to different levels and types of natural (such as plant allelochemicals) and synthetic (such as pesticides) xenobiotics within this range. Several genes have been implicated in the resistance of insects to pesticides, including the P450 monooxygenases superfamily and ATP-binding ...

Date: 2024   |   Origin: Biblioteca Digital do IPB

Insights into population structure and conservation status of north African hon...

Yadró Garcia, Carlos A.; Henriques, Dora; Haider, Yamina; Eissa, Asmaa Anwar; Aglagane, Abdessamad; Rufino, José; Nanetti, Antonio

The population structure of North African A. mellifera subspecies has been overlooked. Here, WG generated from drones were analyzed to assess population structure and the conservation status of three A-lineage subspecies: A. m. lamarckii (Egypt, 68 samples), A. m. intermissa (Algeria, 69 samples), and A. m. sahariensis (Algeria, 68 samples; Morocco, 26 samples). Population structure was assessed by SNMF and PCA...

Date: 2024   |   Origin: Biblioteca Digital do IPB

Comparative Analysis of DNA Extraction Methods for Individual Varroa destructor

Costa, Maíra; Lopes, Ana; Yadró Garcia, Carlos A.; Vitrio, Nathalia; Gonçalves, Telma; Pinto, M. Alice; Henriques, Dora

The ectoparasitic mite Varroa destructor is one of the major honey bee threats and it is associated to population worldwide decline. Genetic analyses using the mtDNA of V. destructor are fundamental for establishing the taxonomy and distribution of the mites. Consequently, low-quality DNA can lead to inaccurate or inconsistent data, making genetic interpretation more challenging. In this study, we compared the ...

Date: 2024   |   Origin: Biblioteca Digital do IPB

Exploring population structure and adaptation in honey bee subspecies from sout...

Yadró Garcia, Carlos A.; Henriques, Dora; Cilia, Giovanni; Rufino, José; Martín-Hernández, Raquel; Nanetti, Antonio; Pinto, M. Alice

Glacial refugia harbor populations with complex diversity patterns. In honey bees, the Iberian and Italian Peninsulas served as two of the most important glacial refugia in Europe. Here, we analyzed whole genomes generated from drones to infer population structure, genetic diversity, and the molecular basis of the local adaptation for the two native subspecies of these Peninsulas: A. m. iberiensis (N=86; M-line...

Date: 2024   |   Origin: Biblioteca Digital do IPB

Exploiting the mitogenomes of apis mellifera subspecies to develop an authentic...

Honrado, Mónica; Henriques, Dora; Santos, Joana; Yadró Garcia, Carlos A.; Martín-Hernández, Raquel; Nanetti, Antonio; González, Amelia Virginia

Honey is highly susceptible to adulteration. Currently, the assessment of its geographical origin remains one of the most difficult tasks, which is typically performed by melyssopalynology. Recently, the attention has shifted towards indirect approaches such as the entomological origin based on geographical distribution patterns of honey bee subspecies. Although queens’ trade has impacted the natural subspecies...

Date: 2024   |   Origin: Biblioteca Digital do IPB

Maternal origin of honeybee (Apis mellifera) colonies from across Europe

Lopes, Ana; Costa, Maíra; Tounakti, Sahar; Henriques, Dora; Quaresma, Andreia; Yadró Garcia, Carlos A.; Albo, Alexandre; Blažytė-Čereškienė, Laima

Worldwide commercial beekeeping poses a threat to the native origin of the honeybee (Apis mellifera), with beekeepers favouring subspecies of Eastern European C-lineage ancestry, due to their docile behaviour and high honey production traits. In many parts of western and northern Europe, queens of Western European M-lineage ancestry have been massively replaced by queens of C-lineage ancestry, and this has led ...

Date: 2024   |   Origin: Biblioteca Digital do IPB

Distribution of Alleles Linked to Pyrethroid and Amitraz Resistance in Varroa d...

Costa, Maíra; Yadró Garcia, Carlos A.; Lopes, Ana; Quaresma, Andreia; Rodrigues, Claúdia; Pinto, M. Alice; Henriques, Dora

Varroa destructor, an ectoparasitic mite of honey bees (Apis mellifera), is a significant threat to apiculture by causing varroosis and transmitting dangerous viruses such as the deformed wings virus. This mite can be controlled by the use of synthetic or organic acaricides. Currently, in Portugal, two classes of synthetic compounds are used: pyrethroids (fluvalinate and flumethrin), and formamidines (amitraz)....

Date: 2024   |   Origin: Biblioteca Digital do IPB

Resistance of varroa destructor to pyrethroids: a preliminary analysis in Portugal

Costa, Maíra; Lopes, Ana; Yadró Garcia, Carlos A.; Coelho, Marta; Martín-Hernández, Raquel; Higes, Mariano; Pires, Sancia; Pinto, M. Alice

Infestations of Varroa destructor are closely associated with colony collapse in the honey bee (Apis mellifera). Currently, three classes of acaricidal compounds are utilized to combat these infestations: pyrethroids (fluvalinate and flumethrin), organophosphates (coumaphos) and formamidines (amitraz). The first cases of V. destructor resistance to pyrethroids were reported in Italy, followed by numerous instan...

Date: 2024   |   Origin: Biblioteca Digital do IPB

An unprecedented large-scale survey of honey bee mitochondrial diversity in Eur...

Li, Fernanda; Costa, Maíra; Lopes, Ana Rita; Gonçalves, Telma; Henriques, Dora; Quaresma, Andreia; Yadró Garcia, Carlos A.; Albo, Alexandre

Europe is home to ten Apis mellifera subspecies, which belong to three mitochondrial lineages: the Western European (M), Eastern European (C), and African (A). However, the long-standing human-mediated movement of queens, primarily of C-lineage ancestry, has threatened the genetic integrity of many of these native subspecies through introgression and replacement. This has led to the establishment of conservatio...

Date: 2024   |   Origin: Biblioteca Digital do IPB

18 Results

Queried text

Refine Results

Author





















More optionsLess options

Date



Document Type



Funding



Access rights


Resource


Subject





















More optionsLess options