Wyniki wyszukiwania

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Prevalence and molecular differentiation of Entamoeba histolytica, Entamoeba dispar, Entamoeba moshkovskii, and Entamoeba hartmanni in Egypt

100%

Abozahra R., Mokhles M., Baraka K.

Acta Parasitologica

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2020

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tom 65

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nr 4

2

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Morphological and molecular differentiation of the Croatian populations of Quercus pubescens Willd. [Fagaceae]

100%

Franjic J., Liber Z., Skvorc Z., Idzojtic M., Sostaric R., Stancic Z.

Acta Societatis Botanicorum Poloniae

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2006

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tom 75

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nr 2

123-130

Taxonomy of the genus Quercus L. is very complicated and often controversial because of its great variability and intense gene flow among the related species. The purpose of this research was to determine morphological and molecular variation, relationships and taxonomic status of the Croatian populations of Quercus pubescens Willd. using morphological analysis of the leaves and RAPD-PCR technique. The results of the morphological and molecular analyses were very similar, both showing differentiation of the southern (Mediterranean) from the northern (Continental) pubescent oak populations. These two groups were clearly separated and the estimated gene flow among the populations that belong to different groups (Nm=1.38) is significantly less than among the populations that belong to the same group (Nm=3.70). The obtained results were compared to the available studies. This study confirms a high variability of the Q. pubescens populations, but differences were not so big to confirm the opinion of existence of several species in this area. The conclusion is that the southern Croatian populations could be pure Q. pubescens populations, while the peculiarities of the northern Croatian populations originate probably from the Q. petraea introgression.

3

Molecular differentiation of three loach species (Pisces, Cobitidae) based on the nuclear 5S rDNA marker

80%

Kirtiklis L., Boron A., Ptasznik P., Luskova V., Lusk S.

Folia Biologica

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2011

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tom 59

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nr 3-4

4

Camallanus Railliet et Henry, 1915 (Nematoda, Camallanidae) from Australian freshwater turtles with descriptions of two new species and molecular differentiation of known taxa

80%

Kuzmin Y., Tkach V. V., Snyder S. D., Bell J. A.

Acta Parasitologica

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2011

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tom 56

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nr 2

Two new species of Camallanus are described from Australian freshwater turtles. Camallanus beveridgei sp. nov. is reported from Elseya dentata in Northern Territory. It differs from other species of the genus parasitic in turtles by several characters including the shape of the median ridge in the buccal capsule and the position of the anterior pair of caudal papillae in males. Camallanus sprenti sp. nov. is reported from Elseya latisternum (type host) and Emydura krefftii in northern Queensland. It is closely related to Camallanus tuckeri, and differs from the latter species in possessing a shorter oesophagus. We summarize data on morphology, distribution and specificity of 5 known Camallanus spp. from Australian turtles and provide a key for their identification. Sequence comparison of more than 500 base pairs at the 5′ end of the nuclear 28S rDNA gene confirms the status of C. sprenti and C. beveridgei as new species. Camallanus sprenti differs from the other 4 species of Camallanus from Australian turtles by 16–59 bases (3.1–11.5%) while C. beveridgei differed from the other 4 species by 23–60 bases (4.5–11.6%). Phylogenetic analysis demonstrates close interrelationships among C. tuckeri, C. sprenti and C. beveridgei, the three species with most similar buccal capsules.

5

Molecular differences in the KRAS gene mutation between a primary tumor and related metastatic sites – case report and a literature review

80%

Kosakowska E., Stec R., Charkiewicz R., Skoczek M., Chyczewski L.

Folia Histochemica et Cytobiologica

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2010

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tom 48

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nr 4

6

Alloglossidium fonti sp. nov. (Digenea, Macroderoididae) from black bullheads in Minnesota with molecular differentiation from congeners and resurrection of Alloglossidium kenti

80%

Tkach V. V., Mills A. M.

Acta Parasitologica

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2011

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tom 56

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nr 2

Alloglossidium fonti sp. nov. is described based on specimens from black bullheads (Ameiurus melas) collected from several localities in northwestern Minnesota. The new species is morphologically closest to A. corti and A. geminum. These two species were also found in the same region as A. fonti sp. nov. and sometimes in the same individual fish. Examination of numerous genetically marked specimens has demonstrated that the most reliable distinguishing feature among the three species is the position of anterior margin of the vitelline fields. In the new species they are situated at the level of anterior margin of ventral sucker while in A. corti it is at the level of intestinal bifurcation or even further anteriorly, and in A. geminum it is at the level of posterior margin of ventral sucker or further posteriorly. The new species has a relatively smaller cirrus sac than A. geminum. Despite rather minor, albeit stable morphological differences, the molecular data strongly supported the status of A. fonti sp. nov. as a new species. Moreover, molecular data and morphological examination of new material suggested that A. kenti, earlier synonymized with A. corti, is a valid species that is resurrected here. Comparison of 2420 base long sequences of nuclear rDNA (partial 18S, complete ITS region, and partial 28S) obtained from multiple specimens of all 4 species collected in Minnesota, North Dakota, Nebraska and Mississippi, showed essentially no intraspecific variability (except for 1 base difference in the ITS2 region of A. fonti sp. nov.), but has demonstrated pronounced interspecific differences. The new species was not found in the four examined catfish species from the Red River of the North (on the border between North Dakota and Minnesota) and neighbouring North Dakota.

7

Taxonomy of little bent-winged bats (Miniopterus, Miniopteridae) from the African islands of Sao Tome, Grand Comoro and Madagascar, based on mtDNA

80%

Juste J., Ferrandez A., Fa J. E., Masefield W., Ibanez C.

Acta Chiropterologica

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2007

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tom 09

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nr 1

Due to a morphological uniformity typically shown by bent-winged bats, the taxonomic recognition of species and subspecies within the sole genus Miniopterus has been much questioned and revised. The situation and definition of the African species M. minor is particularly confused. This species is known from scattered and discontinuous records on both mainland coasts, Madagascar, São Tomé and Grand Comoro islands. The island forms have been included either within M. minor or considered as endemic species. To clarify their taxonomy, we compare mitochondrial DNA sequences of all the island forms with other related African Miniopterus. The genetic distances found in this study support a taxonomic recognition of the island forms at species level and the phylogenetic reconstructions based on these data suggest that the M. minor, as considered traditionally, is not a monophyletic group. The morphological similarities between the Miniopterus from São Tomé (West Africa) and Grand Comoro (East Africa) may reflect convergent evolution rather than a common ancestry.

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Molecular differentiation of Entamoeba histolytica and Entamoeba dispar from stool and culture samples obtained from Polish citizens infected in Tropics and in Poland

80%

Myjak P., Kur J., Pietkiewicz H., Kotlowski A., Nahorski W., Szostakowska B.

Acta Protozoologica

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2000

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tom 39

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nr 3

Ograniczanie wyników

Prevalence and molecular differentiation of Entamoeba histolytica, Entamoeba dispar, Entamoeba moshkovskii, and Entamoeba hartmanni in Egypt

Morphological and molecular differentiation of the Croatian populations of Quercus pubescens Willd. [Fagaceae]

Molecular differentiation of three loach species (Pisces, Cobitidae) based on the nuclear 5S rDNA marker

Camallanus Railliet et Henry, 1915 (Nematoda, Camallanidae) from Australian freshwater turtles with descriptions of two new species and molecular differentiation of known taxa

Molecular differences in the KRAS gene mutation between a primary tumor and related metastatic sites – case report and a literature review

Alloglossidium fonti sp. nov. (Digenea, Macroderoididae) from black bullheads in Minnesota with molecular differentiation from congeners and resurrection of Alloglossidium kenti

Taxonomy of little bent-winged bats (Miniopterus, Miniopteridae) from the African islands of Sao Tome, Grand Comoro and Madagascar, based on mtDNA

Molecular differentiation of Entamoeba histolytica and Entamoeba dispar from stool and culture samples obtained from Polish citizens infected in Tropics and in Poland