Evelyn E Schwager,Michael Schoppmeier,Matthias Pechmann et al.
Evelyn E Schwager et al.
Background: Hox genes are expressed in specific domains along the anterior posterior body axis and define the regional identity. In most animals these genes are organized in a single cluster in the genome and the order of...
The exceptional stem cell system of Macrostomum lignano: screening for gene expression and studying cell proliferation by hydroxyurea treatment and irradiation [0.03%]
Macrostomum lignano的干细胞系统及其基因表达筛选和羟脲及射线诱导的细胞增殖研究
Daniela Pfister,Katrien De Mulder,Isabelle Philipp et al.
Daniela Pfister et al.
Background: Flatworms are characterized by an outstanding stem cell system. These stem cells (neoblasts) can give rise to all cell types including germ cells and power the exceptional regenerative capacity of many flatwor...
Does the DNA barcoding gap exist? - a case study in blue butterflies (Lepidoptera: Lycaenidae) [0.03%]
DNA条形码间隙存在吗？一个关于泛 vesias 组蓝斑蝶的案例研究（鳞翅目：尺蛾科）
Martin Wiemers,Konrad Fiedler
Martin Wiemers
Background: DNA barcoding, i.e. the use of a 648 bp section of the mitochondrial gene cytochrome c oxidase I, has recently been promoted as useful for the rapid identification and discovery of species. Its success is depe...
Judith Korb
Judith Korb
Background: Social insects (ants, bees, wasps and termites) are considered as prime examples of altruism in which individuals (workers) forego their own reproduction to help other individuals reproduce. Such a behaviour i...
An evaluation of LSU rDNA D1-D2 sequences for their use in species identification [0.03%]
LSU rDNA D1-D2序列用于物种鉴定的效果评估研究
Rainer Sonnenberg,Arne W Nolte,Diethard Tautz
Rainer Sonnenberg
Background: Identification of species via DNA sequences is the basis for DNA taxonomy and DNA barcoding. Currently there is a strong focus on using a mitochondrial marker for this purpose, in particular a fragment from th...
Light-dependent magnetoreception in birds: increasing intensity of monochromatic light changes the nature of the response [0.03%]
鸟类光依赖磁感应的强度变化对单一波长光的反应性质的影响
Roswitha Wiltschko,Katrin Stapput,Hans-Joachim Bischof et al.
Roswitha Wiltschko et al.
Background: The Radical Pair model proposes that magnetoreception is a light-dependent process. Under low monochromatic light from the short-wavelength part of the visual spectrum, migratory birds show orientation in thei...
Frieder Mayer,Christian Dietz,Andreas Kiefer
Frieder Mayer
The lack of obvious morphological differences between species impedes the identification of species in many groups of organisms. Meanwhile, DNA-based approaches are increasingly used to survey biological diversity. In this study we show tha...
Sven Steiner,Daniel Erdmann,Johannes L M Steidle et al.
Sven Steiner et al.
Background: The preference-performance hypothesis predicts that oviposition preference of insects should correlate with host suitability for offspring development. Therefore, insect females have to be able to assess not o...
Conrad W Speed,Mark G Meekan,Corey J A Bradshaw
Conrad W Speed
Background: Effective approaches for the management and conservation of wildlife populations require a sound knowledge of population demographics, and this is often only possible through mark-recapture studies. We applied...
Evidence for recent gene flow between north-eastern and south-eastern Madagascan poison frogs from a phylogeography of the Mantella cowani group [0.03%]
来自曼特拉毒蛙科考亚尼组的系统地理学证据表明马达加斯加大东部和东南部最近发生了基因流动
Falitiana C E Rabemananjara,Ylenia Chiari,Olga Ravoahangimalala Ramilijaona et al.
Falitiana C E Rabemananjara et al.
Background: The genus Mantella, endemic poison frogs of Madagascar with 16 described species, are known in the field of international pet trade and entered under the CITES control for the last four years. The phylogeny an...