First records of bat-associated Cimex lectularius (Cimicidae, Heteroptera) for Armenia and Georgia

Besides humans, the common bed bug Cimex lectularius uses bats as hosts, but no such records were available from the Southern Caucasus. Here, we record the greater horseshoe bat (Rhinolophus ferrumequinum) and the lesser mouse-eared bat (Myotis blythii) as hosts of C. lectularius from two Georgian and one Armenian sites. A summary of all known published records of bat-associated populations of C. lectularius shows they are both scattered and restricted to the Palearctic only. Observations of C. lectularius from bat colonies in Georgia and Armenia were made in old buildings or ruins, like churches or monasteries, but not in caves, despite a specific search. This supports previous studies suggesting that 1) bat-associations of common bed bugs are very rare outside Central Europe and 2) almost never occur in caves. We discuss climatic conditions and host preferences as possible factors for these findings and the implications for the origin of the human bed bug interaction

Different unequal cross-over events between NCF1 and its pseudogenes in autosomal p47(Phox)-deficient chronic granulomatous disease

Chronic granulomatous disease (CGD) is a rare congenital disorder in which phagocytes cannot generate superoxide (O-2(-)) and other microbicidal oxidants due to mutations in one of the five components of the O-2(-)-generating NADPH oxidase complex. The most common autosomal subtype of CGD is caused by mutations in NCF1, encoding the NADPH subunit p47(Phox). Usually, these mutations are the result of unequal exchange of chromatid between NCF1 and one of its two pseudogenes. We have now investigated in detail the breakpoints within or between these (pseudo) NCF1 genes in 43 families with p47(Phox)-deficient CGD by means of multiplex ligase-dependent probe amplification (MLPA). In 24 families the patients totally lacked NCF1 sequences, indicating that in these families the cross-over points are located between NCF1 and its pseudogenes. Six other families were compound heterozygous for a total NCF1 deletion and another mutation in NCF1 on the other allele. In 8 families, the patients lacked NCF1 exons 1-4 but had retained NCF1 exons 6-10, indicating that a cross-over point is located within NCF1 between exons 4 and 6. Similarly, in 4 families a cross-over point was located within NCF1 between exons 2 and 4. Similar cross-avers, in heterozygous form, were observed in family members of the patients. Several patients were compound heterozygous for total and partial NCF1 deletions. Thus, at least three different cross-over points exist within the NCF1 gene cluster, indicating that autosomal p47(Phox)-deficient CGD is genetically heterogeneous but can be dissected in detail by MLPA. (C) 2013 Elsevier B.V. All rights reserve

The role of the Caucasus, Carpathian, and Dinaric–Balkan regions in preserving wolf genetic diversity

Mountain regions have long been important for maintaining populations and genetic diversity of wild species, especially those species that require large areas to sustain viable populations. We examined wolves (Canis lupus) in the Caucasus, Carpathian, and Dinaric–Balkan regions, expecting these persistent populations to contain high genetic diversity and an overlap of the major haplogroups detected in earlier broad-scale investigations. We analyzed 926 mitochondrial DNA control region sequences, including 533 new samples whose geographic distribution allowed us to reduce sampling gaps observed in previous broad-scale studies. We estimated genetic variability, population structure, and phylogeographic relationships to evaluate the diversity and connectivity of populations throughout the study regions. We detected haplogroups H1 and H2 that overlapped across the study regions. Haplogroup H1 can be divided into three subgroups: H1A and H1B that partially overlap throughout the study regions, and H1C that was found only in wolves from Armenia. Haplogroup H2 was largely confined to the Carpathian and Dinaric–Balkan regions. Our analyses of population structure partly concurred with the haplogroup distribution and produced four major genetic clusters. Our results demonstrated high genetic diversity within the study regions, supporting their role in maintaining intraspecific variability in wolves and other species that require large areas to sustain viable populations. The unique diversity and north–south structure observed within the Caucasus emphasize the need for further research and conservation efforts in this highly biodiverse region. Our findings highlight the role of broad-scale planning in conserving evolutionary processes in this and other transboundary areas.</p