Browsing by Author "Haddad, Nizar Jamal"

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    Draft genome sequence of the algerian bee apis mellifera intermissa
    (Elsevier, 2015) Haddad, Nizar Jamal; Loucif-Ayad, Wahida; Adjlane, Noureddine; Saini, Deepti; Manchiganti, Rushiraj; Krishnamurthy, Venkatesh; AlShagoor, Banan; Batainh, Ahmed Mahmud; Mugasimangalam, Raja
    Apis mellifera intermissa is the native honeybee subspecies of Algeria. A. m. intermissa occurs in Tunisia, Algeria and Morocco, between the Atlas and the Mediterranean and Atlantic coasts. This bee is very important due to its high ability to adapt to great variations in climatic conditions and due to its preferable cleaning behavior. Here we report the draft genome sequence of this honey bee, its Whole Genome Shotgun project has been deposited at DDBJ/EMBL/GenBank under the accession JSUV00000000. The 240-Mb genome is being annotated and analyzed. Comparison with the genome of other Apis mellifera sub-species promises to yield insights into the evolution of adaptations to high temperature and resistance to Varroa parasite infestation
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    Next-generation sequence data demonstrate several pathogenic bee viruses in Middle East and African honey bee subspecies (Apis mellifera syriaca, Apis mellifera intermissa) as well as their cohabiting pathogenic mites (Varroa destructor)
    (Springer link, 2018) Haddad, Nizar Jamal; Horth, Lisa; Alshagour, Banan; Adjlane, Noureddine
    RNA viruses are associated with honey bee (Apis mellifera) colony losses in many parts of the world. Their consequences may be exacerbated when the ectoparasite mite Varroa destructor is present in hives. While evidence of pathogenic, viral-induced disease is abundant in western honey bees (Apis mellifera mellifera) from many parts of the world, less information exists regarding the pathogen load of Apis mellifera syriaca and Apis mellifera intermissa, honey bees from the Middle East and North Africa (MENA) that play substantial roles in regional beekeeping. Here, we used next-generation sequencing to evaluate the viral populations of these subspecies and their associated mites. We found that both A. m. syriaca and A. m. intermissa, as well as the Varroa mites infecting their colonies, bear a suite of RNA viruses including major pathogenic viruses like Deformed wing virus, Acute bee paralysis virus, Black queen cell virus and Sacbrood virus, and less common viruses (e.g., bee Macula-like virus and Apis mellifera filamentous virus). The two native honey bee MENA subspecies have acquired different but overlapping suites of pathogens, which also differ, but overlap, with the suites detected in the mites. The presence of plant viruses suggests that they were acquired from foraging for pollen and nectar. Phylogenetic analysis of the above common pathogenic RNA viruses showed unexpected genetic relationships with other known strains, indicative of import to MENA from outside of the region. Our findings indicate that it is important to carefully consider the impact of the movement of queens and mobile colonies, and the effects such movement have, on the transmission of disease
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    Whole-genome sequencing of north African honey bee Apis mellifera intermissa to assess its beneficial traits: NGS of A. m. intermissa whole genome
    (Wiley, 2018) Haddad, Nizar Jamal; Adjlane, Noureddine; Saini, Deepti; Menon, Athul; Krishnamurthy, Venkatesh; Jonklaas, Devan; Tomkins, J. Paul; Loucif‐Ayad, Wahida; Horth, Lisa