Publications by authors named "Z Varadinova"
The origin of the German cockroach, , is enigmatic, in part because it is ubiquitous worldwide in human-built structures but absent from any natural habitats. The first historical records of this species are from ca. 250 years ago (ya) from central Europe (hence its name).
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- Apicomplexa is a phylum of unicellular parasites, including serious human pathogens like Plasmodium falciparum and Cryptosporidium hominis, yet little is known about their invertebrate-infecting relatives called gregarines.
- Recent advancements in single-cell sequencing have allowed researchers to examine gregarines' genomes, revealing varying levels of plastid retention and mitochondrial metabolism among different species.
- The study's findings indicate that the evolution of mitochondrial functions in Apicomplexa reflects a pattern of adaptation to parasitic lifestyles and low-oxygen environments, with instances of independent loss of key mitochondrial structures.
Although cockroaches (Blattodea s. str.) exhibit high proportion of species with reduced wings, the underlying evolutionary forces remain unclear.
View Article and Find Full Text PDFFlat grain beetles of the genus Cryptolestes (Coleoptera: Laemophloeidae) are one of the economically most important stored-product pests which feed on many kinds of agricultural products, especially grains. Nine of more than 40 described Cryptolestes species are recognized as stored-product pests and two of the pest species have a cosmopolitan distribution. Given the rapid growth in global trade of food products, ecological barriers to the spread of pests are easily overcome.
View Article and Find Full Text PDFSeveral species of the genus Cryptolestes Ganglbauer, 1899 (Coleoptera: Laemophloeidae) are commonly found in stored products. In this study, five species of Cryptolestes, with almost worldwide distribution, were obtained from laboratories in China, Czech Republic and the USA: Cryptolestes ferrugineus (Stephens, 1831), Cryptolestes pusillus (Schönherr, 1817), Cryptolestes turcicus (Grouvelle, 1876), Cryptolestes pusilloides (Steel & Howe, 1952) and Cryptolestes capensis (Waltl, 1834). Molecular identification based on a 658 bp fragment from the mitochondrial DNA cytochrome c oxidase subunit I (COI) was adopted to overcome some problems of morphological identification of Cryptolestes species.
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