Red-cell enzyme polymorphisms in the Reggio Calabria province (Italy)

Acid phosphatase (ACP1), adenosine deaminase (ADA), esterase D (ESD), glyoxalase 1 (GLO1), phosphogluconate dehydrogenase (PGD) and phosphoglucomutase 1 and 2 (PGM1 and PGM2) polymorphisms have been studied in the Reggio Calabria province (Southern Italy). The ACP1*A allele and ADA, GLO1, PGD and PGM1 systems have frequencies similar to those reported for Sicily and Southern Italy.     

Comments on the determination of isoenzyme polymorphism (ADA,AK, 6-PGD,PGM) by cellulose acetate electrophoresis

Summary The paper highlights certain peculiarities of isoenzyme polymorphism as determined by cellulose acetate electrophoresis, as compared to other supporting media at different pH levels and concentrations of the buffer.

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Zusammenfassung Es werden Besonderheiten bei der Bestimmung der Isoenzymmuster mit der Celluloseacetatfolien-Elektrophorese in bezug auf andere Trägermedien als auch in bezug auf pH-Wert und Konzentration der verwendeten Puffer beschrieben.

     

AK and ADA polymorphisms in South Sardinia

A sample of the South Sardinia population was studied with respect to adenylate kinase (AK) and adenosine deaminase (ADA) enzymes. The gene frequencies were: AK1 0.975 and ADA1 = 0.933. The results were compared with those of other Italian populations.     

Kombinierte elektrophoretische Darstellung der Adenylatkinase (AK) und der 6-Phosphogluconat-Dehydrogenase (6-PGD)

Zusammenfassung Es wird eine Methode beschrieben, die einen parallelen Nachweis zweier Isoenzympolymorphismen ermöglicht. Nach gemeinsamer stärkegelelektrophoretischer Auftrennung werden die Isoenzymmuster Adenylatkinase und 6-Phosphogluconat-Dehydrogenase angefärbt und differenziert. Die Auftrennung der Isoenzyme ist ausreichend und mit den Originalergebnissen vergleichbar.

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Simultaneous gel electrophoresis of adenylate kinase and 6-phosphogluconate-dehydrogenase

Summary Following simultaneous gel electrophoresis isoenzyme patterns of adenylate kinase and 6-phosphogluconate-dehydrogenase are stained. Differentiation of all phenotypes is enabled. Results are comparable with those obtained by original methods.

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Nach einem Vortrag, gehalten auf der Tagung der Gesellschaft für forensische Blutgruppenkunde, Freiburg, 1970.     

GPT, 6-PGD,PGM and AK phenotyping inone starch gel

Summary A method is described for simultaneous electrophoretic separation of GPT (EC 2.6.1.2), 6-PGD (EC 1.1.1.44), PGM (EC 2.7.5.1) and AK (EC 2.7.4.3) enzyme variants.

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Zusammenfassung Beschreibung einer Methode zur gleichzeitigen elektrophoretischen Auftrennung der Enzymvarianten von GPT (EC 2.6.1.2), 6-PGD (EC 1.1.1.44), PGM (EC 2.7.5.1) and AK (EC 2.7.4.3).

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Abbreviations GPT Glutamic Pyruvic Transaminase - 6-PGD 6-Phosphogluconate Dehydrogenase - PGM Phosphoglucomutase - AK Adenylate Kinase Supported by the Deutsche Forschungsgemeinschaft, the Stiftung Volkswagenwerk and the Fonds der Chemischen Industrie.     

中国20个民族中PGM_1及其亚型EsD、GLO1、AK、ADA和6-PGD酶型分布调查

调查了汉族、鄂伦春、赫哲、朝鲜、蒙古、羌、土家、苗、侗、畲、壮、纳西、傈僳、白、彝、景颇、哈尼、傣、维吾尔和塔吉克等20个民族的PGM_1及其亚型,EsD、GLO_1、AK、ADA和6-PGD等酶型的分布及基因频率。PGM_1及其亚型、EsD和GLO_1在中国各民族中是分布较好的,个人识别能力较高的酶。有12个民族查出有PQM_1~6基因,壮族的频率最高,PGM_1 6-1表型达4.15％。对在4174份血样中所检出的带有PGM_1~6基因的68份血样做亚型分析,在凝胶上PGM_1~6谱带均在同一位置上。EsD_1基因频率的总趋向是北方各民族高于南方。哈尼、傈僳、傣、纳西、畲、壮、侗和苗等民族EsD2-2表型达15％以上,哈尼族高达32.4％。GLO1~1基因频率塔吉克和维吾尔族为0.2927和0.2112,羌族为0.0583,其它各族在0.0714—0.1527。各民族AK~1、ADA和6-PGD~(?)基因频率均甚高。     

Mitochondrial DNA polymorphisms in the Albanian population of Calabria (Southern Italy)

RFLPs of mtDNA for HpaI, BamHI, HaeII, MspI, AvaII and HincII were analyzed in 100 individuals from 15 Albanian villages of the Cosenza province (Calabria, Southern Italy). Thirteen mtDNA types were identified, one of which is new and is due to an AvaII morph (AvaII 27^Alb) never described before. Other two types (15-2 and 40-2) previously unfound in Italians were detected in one and two individuals respectively. The intra-group homogeneity (F=.49) resulted to be the highest found among the Italian groups examined so far. It is however very similar to that of a control sample of the Calabria population (F=.46). On the whole no important differences have emerged in the comparison between Albanians and not Albanians from Calabria. These results can indicate either that the markers we examined are not discriminative or that genetic admixture has occurred at least by immigration of Calabrian women into the Albanian group.     

AK, PGM1 and 6PGD polymorphisms in Central Sardinia

Adenylate kinase (AK), phosphoglucomutase (PGM1) and 6-phosphogluconate dehydrogenase (6PGD) polymorphisms were investigated in a sample of individuals from Central Sardinia. The gene frequencies were: AK1 = 0.973, PGM1(1) = 0.842 and PGDA = 0.969. The frequencies were compared with those of other Italian populations.     

South African Negroes: isoenzyme polymorphisms (GPT, PGM1, PGM2, AcP, AK, and ADA) and tentative genetic distances

Data on the genetic polymorphisms of the isoenzyme markers GPT, PGM1, PGM2, AcP, AK and ADA are presented for 7 ethnically defined Negro sub-samples (total n = 847-973, depending on the genetic marker concerned) from South Africa. The results are discussed in terms of previous findings, of the anthropogenetic interrelatedness of the populations concerned and of the factors assumed to have an influence on the distribution of the particular genetic markers. The entire data is subjected to the computation of "genetic distances" using several of the formulae available for this purpose. Some tentative conclusions on these results as well as on the formulae applied are drawn.     

Bioclimatic analysis in a region of southern Italy (Calabria)

In this study, an analysis of precipitation and temperature data has been performed over 67 series observed in a region of southern Italy (Calabria). At first, to detect possible trends in the time series, an analysis was performed with the Mann–Kendall non-parametric test applied at monthly and seasonal scale. An additional investigation, useful for checking the climate change effects on vegetation, has also been included analysing bioclimatic indicators. In particular, Emberger, Rivas-Martinez and De Martonne indices were calculated by using monthly temperature and precipitation data in the period 1916–2010. The spatial pattern of the indices has been evaluated and, in order to link the vegetation and the indices, different indices maps have been intersected with the land cover data, given by the Corine Land Cover map. Moreover, the temporal evolution of the indices and of the vegetation has been analysed. Results suggest that climate change may be responsible for the forest cover change, but, given also the good relationship between the various types of bioclimate and forest formations, human activities must be considered.     

Phosphoglucomutase-1 subtypes in the Albanian ethnic minority of the province of Cosenza (Calabria-Southern Italy): Presence of a new variant

Allele frequencies of the phosphoglucomutase-1 (PGM1), in the Albanian ethnic minority of province of Cosenza (Calabria-Southern Italy) were compared with the corresponding data from neighbouring non-Albanian sample groups. The isoelectrofocusing evaluation in the two populations revealed the presence of a new variant PGM1^*W31 in Albanian sample group. Furthermore, a significant heterogeneity was observed between Albanian allele frequencies and those of the surrounding groups.     

First record of Devonian orthoceratid-bearing limestones in southern Calabria (Italy)

Lower to Middle Devonian orthoceratid-bearing nodular limestones in Calabria are described here for the first time, along the Fiumara Assi section. The succession is tectonically inverted and has been dated by conodonts. The lower beds are Lochkovian–Lower Pragian, because they provided Icriodus cf. steinachensis and Pelekysgnathus serratus, which occur in the delta-sulcatus Zones. Upwards appear Polygnathus cf. dehiscens, corresponding to the dehiscens-gronbergi Zones, and Ozarkodina cf. steinhornensis miae of the dehiscens-inversus Zones, both indicating a topmost Pragian–Lower Emsian age. The Eifelian (or younger) age for the top of the succession is demonstrated by Polygnathus linguiformis linguiformis. This succession, as well as similar coeval deposits of the southern Variscan Chain (southwestern Sardinia, eastern Pyrenees), Betic–Rifian Maláguides-Ghomarides and southern Alps, made part of a western embayment of the Palaeotethys.     

Alien flora in Calabria (Southern Italy): an updated checklist

Biological Invasions - An updated checklist of the Calabrian alien vascular flora is presented. By way of field, bibliographic, and herbarium research, we recorded 382 alien taxa (representing...     

The vascular flora of the Cassano Structural High (NE Calabria,Italy)

Abstract

The purpose of this work is to investigate the flora of the calcareous outcrops of Cassano Ionio (NE Calabria). 421 taxa, belonging to 284 genera and 68 families, are listed. As a result of excessive grazing, fire and very arid climate, the presence of therophites is remarkable. The Stenomediterranean elements are more representative. Rocks and cliffs typically preserve an interesting chasmophytic flora. Finally, several species of phytogeographic interest and 5 new records for the Calabrian flora, are reported.