Abstract：
:Exploiting the annotation of the western clawed frog Silurana tropicalis genome, we identified a new metallothionein (MT) gene, exhibiting all the features to be considered an active gene, but with an atypical coding region, showing only 17 cysteine residues instead of the canonical 20 cysteines of vertebrate metallothioneins and two anomalous cysteine triplets. However, the presence of a gene in the genome does not ensure its effective expression. By using conventional and Real-Time PCR analyses, we demonstrated that this atypical MT is constitutively expressed throughout the life cycle of the African clawed frog Xenopus laevis; moreover, this gene is highly expressed in the adult liver, the major site of MT expression and synthesis in vertebrates. To our knowledge, the X. laevis MT described in this paper is the first sequence of a vertebrate MT showing only 17 cysteine residues, arranged in two Cys-Cys-Cys motifs. Phylogenetic analyses also demonstrated that the atypical X. laevis MT merges in the anuran clade, but is the most derived sequence among tetrapods MTs. Finally, Tajima's Relative Rate Test suggested a different evolutionary rate between the canonical X. laevis MT and this novel isoform.
journal_name
C R Bioljournal_title
Comptes rendus biologiesauthors
Scudiero R,Tussellino M,Carotenuto Rdoi
10.1016/j.crvi.2015.03.011subject
Has Abstractpub_date
2015-05-01 00:00:00pages
314-20issue
5eissn
1631-0691issn
1768-3238pii
S1631-0691(15)00089-Xjournal_volume
338pub_type
杂志文章abstract：:This paper deals with the effects of agronomic practices on parasite life cycles, and the design of integrated crop protection strategies. Cropping systems have a large effect on the size of the primary inoculum and its localisation, on the development and spread of epidemics, and on the coordination of the life cycle...
journal_title：Comptes rendus biologies
pub_type： 杂志文章,评审
doi：10.1016/s1631-0691(03)00006-4
更新日期：2003-01-01 00:00:00
abstract：:Data on mineral elements in spirulinas being limited, we analyzed macrominerals and trace elements of samples from France and Africa. Spirulinas cultivated in France have a composition in macromineral elements similar to those of the literature. The entire contents of trace elements are low. Unlike marine cyanobacteri...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2013.11.004
更新日期：2014-01-01 00:00:00
abstract：:Austronesians colonized the islands of Rapa Nui, Hawaii, the Marquesas and Madagascar. All of these islands have been found to harbor Austronesian artifacts and also, all of them are known nesting sites for marine turtles. Turtles are well known for their transoceanic migrations, sometimes totalling thousands of miles...
journal_title：Comptes rendus biologies
pub_type： 历史文章,杂志文章
doi：10.1016/j.crvi.2015.12.001
更新日期：2016-02-01 00:00:00
abstract：:Phenotypic variability in nature is the most important feature for Darwinian adaptation, yet it has been rarely investigated in invasive species. Zaprionus indianus is an Afrotropical drosophilid species that have recently invaded the Palearctic and the Neotropical regions. Here, we compared the variability of three s...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2009.06.003
更新日期：2009-10-01 00:00:00
abstract：:Choosing a suitable habitat is a main step in the settlement process, particularly for species having weak movement abilities. Reliable cues are thus needed for habitat selection. In silk-spinning arthropods, silk can be used as a social cue to select an appropriate location. Silk can also provide information on the p...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2012.07.001
更新日期：2012-08-01 00:00:00
abstract：:A brief history of the development of genomics is provided. Complete sequencing of genomes of uni- and multicellular organisms is based on important progress in sequencing and bioinformatics. Evolution of these methods is ongoing and has triggered an explosion in data production and analysis. Initial analyses focused ...
journal_title：Comptes rendus biologies
pub_type： 历史文章,杂志文章,评审
doi：10.1016/j.crvi.2016.05.002
更新日期：2016-07-01 00:00:00
abstract：:Several recent molecular studies have begun to clarify the phylogeny of Acanthomorpha (Teleostei), a wide clade of teleost fishes. However, different molecular datasets do not agree on a single history of the taxa, probably because of marker-specific biases. The 'total-evidence' approach maximizes character congruence...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2005.04.002
更新日期：2005-07-01 00:00:00
abstract：:The evolutionary history of modern humans means much more than their demographic past. It includes the way in which humans have had to genetically adapt to the different environments they have encountered-nutritional, climatic or pathogenic-as well as the different epigenetic responses elicited by such environmental c...
journal_title：Comptes rendus biologies
pub_type： 杂志文章,评审
doi：10.1016/j.crvi.2016.04.005
更新日期：2016-07-01 00:00:00
abstract：:The Mediterranean stone pine Pinus pinea L. (gymnosperm, Pinaceae) is much appreciated for its seed production, widely used in food preparation in the Mediterranean Basin. Seeds contain 25% proteins on a dry-weight basis. Pinus pinea accumulate globulins as major storage proteins in seeds (75% of total storage protein...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2007.03.011
更新日期：2007-05-01 00:00:00
abstract：:In the present investigation, a total of 51 marine fungi were obtained from wood samples collected from four locations of Tamil Nadu (Tuthukudi, Chennai, Kanyakumari and Pichavaram), India. Out of these 51, 28 were ascomycetes, one was basidiomycete and 22 were mitosporic fungi. Maximum fungal diversity was encountere...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2008.03.008
更新日期：2008-06-01 00:00:00
abstract：:Plant breeding is a way of selection of a particular individual for the production of the progeny by separating or combining desired characteristics. The objective of this study was to justify different characteristics of Dioscorea hispida (Ubi gadong) varieties using molecular techniques to select the best variety fo...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2017.08.003
更新日期：2017-08-01 00:00:00
abstract：:A number of different neuropeptides exert powerful concerted controls on feeding behavior and energy balance, most of them being produced in hypothalamic neuronal networks under stimulation by anabolic and catabolic peripheral hormones such as ghrelin and leptin, respectively. These peptide-expressing neurons intercon...
journal_title：Comptes rendus biologies
pub_type： 杂志文章,评审
doi：10.1016/j.crvi.2006.03.021
更新日期：2006-08-01 00:00:00
abstract：:Submerged fermentation in a stirred bioreactor of the white rot fungus Cerrena unicolor C-139 was done at a 120-L scale in the presence of wheat bran as a cheap lignocellulosic substrate for fungus growth and laccase production. Enzyme monitoring showed that laccase production started after 2 days of cultivation, atta...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2014.12.001
更新日期：2015-02-01 00:00:00
abstract：:A field experiment was conducted with paddy (Oryza sativa L.) irrigated with different concentrations (Control, 2.5, 5, 10, 25, 50, 75, 100 and 200 mg/l) of chromium. The changes in growth, yield, nutrient content and chromium accumulation in the paddy are reported. The growth of shoot, root, total leaf area, fresh we...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2010.03.002
更新日期：2010-08-01 00:00:00
abstract：:Studies on the cognitive abilities of manatees are limited despite their importance for the environmental enrichment and welfare of individuals in captivity and the understanding of manatee behaviour in the wild. Our study analyses how the presence of new stimuli and their association with food may have changed the be...
journal_title：Comptes rendus biologies
pub_type： 新闻
doi：10.5802/crbiol.6
更新日期：2020-06-05 00:00:00
abstract：:Stochastic modeling of dairy cattle populations using multiple ovulation and embryo transfer (MOET) was used to compare 15-year genetic responses with an artificial insemination (AI) program. MOET and AI techniques were simulated in four populations, two with 100 breeding females each and two with 400 breeding females...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2010.07.001
更新日期：2010-10-01 00:00:00
abstract：:This study compared the behaviour of six autochthonous pear millet ecotypes collected through the Tunisian territory under salt stress from germination to maturity. It showed that salt has little effect on germination rate and coleoptile emergence. However, this effect is more significant for radicular growth and betw...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2008.01.006
更新日期：2008-04-01 00:00:00
abstract：:The approaches used by demographers and by epidemiologists for studying the fecundity of couples (i.e. their ability to conceive) have converged, whereas they were historically divergent. Demography traditionally focused on fertility - the circumstances in which livebirths occur - with the aim of predicting population...
journal_title：Comptes rendus biologies
pub_type： 杂志文章,评审
doi：10.1016/j.crvi.2007.02.013
更新日期：2007-04-01 00:00:00
abstract：:We evaluated two biodiversity criteria, higher taxonomic diversity and phylogenetic diversity in French Guiana. For this, we used a recent assessment of the knowledge accumulated since 30 years of study on the amphibian species currently known in French Guiana. We focused on two well-represented genera, Hyla and Scina...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2005.07.005
更新日期：2005-10-01 00:00:00
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journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2004.03.001
更新日期：2004-05-01 00:00:00
abstract：:The spatial variation of soil pH and soil organic matter (SOM) in the urban area of Xuzhou, China, was investigated in this study. Conventional statistics, geostatistics, and a geographical information system (GIS) were used to produce spatial distribution maps and to provide information about land use types. A total ...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2014.02.008
更新日期：2014-05-01 00:00:00
abstract：:Why was sexual selection so important to Darwin? And why was it de-emphasized by almost all of Darwin's followers until the second half of the 20th century? These two questions shed light on the complexity of the scientific tradition named "Darwinism". Darwin's interest in sexual selection was almost as old as his dis...
journal_title：Comptes rendus biologies
pub_type： 传,历史文章,杂志文章
doi：10.1016/j.crvi.2009.12.001
更新日期：2010-02-01 00:00:00
abstract：:The wild plant known as Calotropis procera is important in medicine, industry and ornamental fields. Due to spread in areas that suffer from environmental stress, it has a large number of tolerance genes to environmental stress such as drought and salinity. Proline is one of the most compatible solutes that accumulate...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2014.09.002
更新日期：2014-12-01 00:00:00
abstract：:This article demonstrates how that the effectiveness of nervous system in doing the computations essential to an organism can be based on using algorithms that are readily implemented by nervous system 'device biophysics'. Collective effects and collective algorithms that exploit their dynamics provide powerful potent...
journal_title：Comptes rendus biologies
pub_type： 杂志文章,评审
doi：10.1016/s1631-0691(03)00017-9
更新日期：2003-02-01 00:00:00
abstract：:5-(Hydroxymethyl)uracil, 5-formyluracil or 5-carboxyuracil can be formed in DNA upon exposure to ionizing radiations. We report the effect of the latter oxidative lesions on the in vitro transcription by T7 RNA polymerase using a single-stranded short model template. Kinetic experiments showed that the transcription y...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2005.07.003
更新日期：2005-09-01 00:00:00
abstract：:The green birdmouth wrasse Gomphosus caeruleus is present all year round on the coral reefs of Reunion Island (Indian Ocean). A group of individuals was followed on one of these reefs with the objective of studying the reproduction mode of the species, the influence of environmental factors, and social behaviors on th...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2017.11.004
更新日期：2018-01-01 00:00:00
abstract：:The aim of this work is to assess the use of (SPOT) multispectral visible infrared remote sensing to study microphytobentos assemblages in a shellfish ecosystem (Bay of Bourgneuf, France). SPOT satellite images (acquired at low tide in spring or autumn between 1986 and 1998) were calibrated using in situ radiometric d...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/s1631-0691(03)00125-2
更新日期：2003-04-01 00:00:00
abstract：:To add to our understanding of dendrocoelid spermatozoa and to describe additional phylogenetic characters, the ultrastructure of the testis was investigated in the subterranean freshwater planarian Dendrocoelum constrictum. This is the first study investigating spermatogenesis and spermatozoon ultrastructure in a sub...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2014.07.004
更新日期：2014-09-01 00:00:00
abstract：:This study was undertaken to assess the risk of poisoning due to consumption of the puffer fish Lagocephalus lagocephalus collected along the Tunisian coast. Wistar rats were daily intraperitoneally injected, for 10 days, with acidic extracts of liver or flesh (muscles + skin) of L. lagocephalus. Control rats received...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2008.05.005
更新日期：2008-08-01 00:00:00
abstract：:Various methods of suberin extraction have been used in order to identify monomers of this complex polymer. Pre-extraction of waxes has allowed us to identify for the first time 3-friedelanol as a terpen from cork. Moreover, the wax chemical composition found here varied from previous results since cerin was not ident...
journal_title：Comptes rendus biologies
pub_type： 杂志文章
doi：10.1016/j.crvi.2008.08.011
更新日期：2008-11-01 00:00:00
