Results 101 to 110 of about 139,280 (294)

Genetic diversity and genetic exchange in Trypanosoma cruzi: dual drug-resistant "progeny" from episomal transformants

Memorias do Instituto Oswaldo Cruz, 1999
Extensive characterisation of Trypanosoma cruzi by isoenzyme phenotypes has separated the species into three principal zymodeme groups, Z1, Z2 and Z3, and into many individual zymodemes. There is marked diversity within Z2.
JR Stothard, IA Frame, MA Miles
doaj   +1 more source

Mammal endemism In Italy: A review [PDF]

, 2018
Although there are various checklists of Italian mammals, there is not yet a synthesis of those mammals that are endemic to Italy. Therefore, we provide for the first time a detailed review on Italian mammal endemic species including endemic taxa ...
Amori, Giovanni, Castiglia, Riccardo
core   +3 more sources

Reproductive characteristics of reciprocal hybrid lineages derived from hybridization between Megalobrama amblycephala × Culter alburnus

, 2023
Abstract Background Distant hybridization is an important breeding technique for creating new strains with superior traits by integrating two different genomes. Successful hybridization of Megalobrama amblycephala (BSB, 2n = 48) and Culter alburnus (TC, 2n = 48) was achieved to establish hybrid lineages (BT and TB), which provide valuable ...
Xue Ding, Yifei Zhang, Die Li, Jia Xu, Chang Wu, Xiaojuan Cui, Yuandong Sun   +6 more
openaire   +1 more source

A Modular Bioinstructive Platform Reveals Mechanistic Insights into Additive‐Free, Topography‐Driven Osteogenesis

Advanced Healthcare Materials, EarlyView.
Engineered microparticle topographies direct human mesenchymal stem cell osteogenesis without biochemical additives. This osteogenic commitment is driven by canonical Hedgehog signaling and followed by temporal IGF‐II engagement. Two‐photon polymerization demonstrates spatial control, enabling the engineering of topographical gradients that pattern ...
Fatmah I. Ghuloum, Leo A. H. Zeef, Lee A. Stevens, Marco A. N. Domingos, Susan J. Kimber, Mahetab H. Amer   +5 more
wiley   +1 more source

The contribution of differential hatching success to the fitness of species and interspecific hybrids [PDF]

, 2007
Resting egg banks of microcrustaceans have been used to reconstruct the evolutionary and ecological history of species. However, recent studies provided evidence for a discrepancy between dormant propagules in the sediment and the planktonic population ...
Brede, Nora, Schwenk, Klaus, Straile, Dietmar, Streit, Bruno   +3 more
core   +1 more source

Mapping the Cerebral Organoid Landscape: A Systematic Review of Preclinical 3D Models in Neuroscience

Advanced Healthcare Materials, EarlyView.
Cerebral organoids are transforming brain research, yet the field remains fragmented. This comprehensive systematic review maps 738 studies published between 2014 and 2024 to uncover trends, gaps, and opportunities across neuroscience. Introducing OrganoidMap—an interactive, open‐access platform to explore and compare models—this work enables ...
Anna Wolfram, Vanessa Arnold, Maik Wolfram‐Schauerte, Anastassiya Moskalchuk, Caroline Trust, Marie Vontz, Mona Scheurenbrand, Vijayasarathy Sampath‐Kumar, Sogand Ahari, Carlos Romero‐Nieto, Lisa Sevenich   +10 more
wiley   +1 more source

An Empirical Analysis Rejects the Hybrid Speciation Hypothesis of a Crucial Kiwifruit Species, Despite Genomic Evidence of Frequent Interspecific Gene Flow in the Genus

Frontiers in Genetics, 2020
Hybrid speciation is an important way to generate species diversity. In general, however, interspecific hybridization is easily confused with the formation of hybrid species.
Jie Yang, Weirui Fu, Haoming Xu, Zhiping Song, Wenju Zhang, Ji Yang, Yuguo Wang   +6 more
doaj   +1 more source

Developing and applying heterogeneous phylogenetic models with XRate [PDF]

, 2012
Modeling sequence evolution on phylogenetic trees is a useful technique in computational biology. Especially powerful are models which take account of the heterogeneous nature of sequence evolution according to the "grammar" of the encoded gene features.
A Heger, A Siepel, A Varadarajan, AJ Drummond, B Knudsen, B Knudsen, Christos A. Ouzounis, D Ayres, DB Searls, E Birney, G Lunter, GSC Slater, Ian Holmes, IM Meyer, J Felsenstein, J Goecks, J Watts, JS Pedersen, L Stein, M Garber, M Hasegawa, M Kimura, M Zuker, ME Skinner, N Saitou, O Penn, Oscar Westesson, PS Klosterman, RK Bradley, SR Eddy, TH Jukes, WJ Kent, Z Yang   +32 more
core   +5 more sources

Cryptic hybridization between the ancient lineages of Natterer's bat (Myotis nattereri) [PDF]

Molecular Ecology
AbstractStudying hybrid zones that form between morphologically cryptic taxa offers valuable insights into the mechanisms of cryptic speciation and the evolution of reproductive barriers. Although hybrid zones have long been the focus of evolutionary studies, the awareness of cryptic hybrid zones increased recently due to rapidly growing evidence of ...
Darija Josić, Emrah Çoraman, Isabelle Waurick, Sören Franzenburg, Leonardo Ancillotto, Branka Bajić, Ivana Budinski, Christian Dietz, Tamás Görföl, Sofia I. Hayden Bofill, Primož Presetnik, Danilo Russo, Martina Spada, Vida Zrnčić, Mozes P. K. Blom, Frieder Mayer   +15 more
openaire   +4 more sources

Delimiting genetic units in Neotropical toads under incomplete lineage sorting and hybridization [PDF]

BMC Evolutionary Biology, 2012
Delimiting genetic units is useful to enhance taxonomic discovery and is often the first step toward understanding evolutionary mechanisms generating diversification. The six species within the Rhinella crucifer group of toads were defined under morphological criteria alone. Previous data suggest limited correspondence of these species to mitochondrial
Thome, Maria Tereza C., Zamudio, Kelly R., Haddad, Celio Fernando Baptista, Alexandrino, Joao   +3 more
openaire   +5 more sources