Preprints (not yet peer-reviewed)

46 downloads
107 views

The discovery of induced pluripotent stem cells (iPSCs) by Shinya Yamanaka in 2006 was heralded as a major breakthrough of the decade in stem cell research. The ability to reprogrammed human somatic cells to a pluripotent embryonic stem cell-like state through...

["Cell Biology","Developmental Biology","Genetics"]
doi:10.7287/peerj.preprints.3374v1
19 downloads
167 views

Although comparative studies of anuran ontogeny have provided new data on heterochrony in the life cycles of frogs, most of them have not included Colombian species. Using different staining techniques, we describe the cranial and poscranial elements development...

["Biodiversity","Developmental Biology","Evolutionary Studies","Taxonomy","Zoology"]
doi:10.7287/peerj.preprints.3368v1
54 downloads
162 views

Many plant species exhibit heterophylly, displaying different leaves upon a single plant. The molecular mechanisms regulating this phenomenon, however, have remained elusive. In this study, the transcriptomes of submerged and floating leaves of an aquatic heterophyllous...

["Cell Biology","Developmental Biology","Evolutionary Studies","Genetics","Plant Science"]
doi:10.7287/peerj.preprints.3336v1
73 downloads
312 views

Phenotypic differences between closely related taxa or populations can arise through genetic variation or be environmentally induced, in both cases leading to altered transcription of genes during the structural and functional development of the body. Comparative...

["Developmental Biology","Ecology","Evolutionary Studies","Genomics","Freshwater Biology"]
doi:10.7287/peerj.preprints.3318v1
18 downloads
159 views

Quality disciplines have been widely used for decades in industrial and business fields. It is only in recent times, however, that Quality management and approaches have received proper attention in life science. The development, optimization, validation and dissemination...

["Biochemistry","Cell Biology","Developmental Biology","Ethical Issues","Science Policy"]
doi:10.7287/peerj.preprints.3316v1
35 downloads
321 views

The study of ontogeny in the fossil record is complicated by two main factors: growth series are not available for many taxa, and correctly assigning juveniles and adults to the same taxon is often difficult, especially where several related taxa coexisted. Ontogenetic...

["Developmental Biology","Evolutionary Studies","Marine Biology","Paleontology","Zoology"]
doi:10.7287/peerj.preprints.3162v2
105 downloads
560 views

AMNH FARB 291 is a unique sauropod dinosaur specimen, excavated in 1898 from the Bone Cabin Quarry of Wyoming (Upper Jurassic; Morrison Formation). It consists of a sequence of five contiguous dorsal vertebrae, all with biconvex centra: a morphology not previously...

["Developmental Biology","Evolutionary Studies","Paleontology"]
doi:10.7287/peerj.preprints.3144v2
746 downloads
493 views

One of the great mysteries of the brain, which has puzzled all-time students of brain form and function is the contralateral organization of the forebrain, and the crossings of its major afferent and efferent connections. As a novel explanation, two recent studies...

["Developmental Biology","Neuroscience","Zoology"]
doi:10.7287/peerj.preprints.432v3
70 downloads
96 views

It is well documented that coordination of feeding behavior in anuran amphibians requires precise coordination of the jaw levators and depressors with the timing of the protraction of the tongue. (for review, see Nishikawa, 2000). However, the neuronal mechanism...

["Developmental Biology","Neuroscience"]
doi:10.7287/peerj.preprints.3131v1
57 downloads
141 views

Mitochondria cannot be produced de novo by the cell, but are inherited across generations. Their peculiar genetics (multiple genomes per cell, no meiosis, replication independent from cell cycle, high mutation rate) and the possible exposition to Reactive Oxygen...

["Developmental Biology","Evolutionary Studies"]
doi:10.7287/peerj.preprints.3122v1
47 downloads
412 views

Predation is the main driver of mortality during early life stages. The ability to avoid and evade potential threats is, therefore, favoured to evolve during the early stages of life. It is also during these early stages that the process of familiarization occurs....

["Animal Behavior","Aquaculture, Fisheries and Fish Science","Developmental Biology"]
doi:10.7287/peerj.preprints.2937v1
76 downloads
376 views

Previous studies have used the zebrafish to investigate the biology of lens crystallin proteins and their roles in development and disease. However, little is known about zebrafish α-crystallin promoter function, how it compares to that of mammals, or whether mammalian...

["Developmental Biology","Molecular Biology","Neuroscience","Ophthalmology"]
doi:10.7287/peerj.preprints.2889v1
249 downloads
1,041 views

Synapsida, the clade including therapsids and thus also mammals, is one of the two major branches of amniotes. Organismal design, with modularity as a concept, offers insights into the evolution of therapsids, a group that experienced profound anatomical transformations...

["Developmental Biology","Evolutionary Studies","Neuroscience","Paleontology","Anatomy and Physiology"]
doi:10.7287/peerj.preprints.2313v2
152 downloads
381 views

Cellular heterogeneity is important to biological processes, including cancer and development. However, proteome heterogeneity is largely unexplored because of the limitations of existing methods for quantifying protein levels in single cells. To alleviate these...

["Biochemistry","Cell Biology","Computational Biology","Developmental Biology","Molecular Biology"]
doi:10.7287/peerj.preprints.2767v1
47 downloads
204 views

Background. Fibroblast growth factors (FGFs) and their receptors (FGFRs) are involved in the development and function of multiple organs and organ systems, including the central nervous system (CNS). FGF signaling via FGFR1, one of the three FGFRs expressed in...

["Cell Biology","Developmental Biology","Neuroscience"]
doi:10.7287/peerj.preprints.2729v1
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