| electrical discharges in chinese salamander andrias davidianus. | in 2-year-old chinese giant salamanders andrias davidianus, occasional electric discharges with a characteristic pattern similar to the electric discharges of weakly electric catfish, polypterus and protopterus, were recorded for the first time. the discharges markedly differ in shape from the myograms accompanying abrupt movements of the salamander or exceeded them in amplitude by more than an order of magnitude. the discharges were recorded both in the autonomous experiment in the absence of e ... | 2016 | 28058686 |
| cytogenic studies of hynobiidae (urodela). xiv. analysis of the chromosome of a chinese salamander, batrachuperus pinchonii (david). | the chromosome number of a chinese salamander, batrachuperus pinchonii, was re-examined adults and embryonic specimens had a diploid number of 66, with 33 bivalents during meiosis, in contrast to previous reported results. furthermore, when c-banding analysis was performed with embryos, chromosomes with banding patterns homoeologous to those of salamandrella keyserlingii and hynobius species were found. it appears, therefore, that batrachuperus, salamandrella and hynobius might be derived from a ... | 1998 | 9539957 |
| thresholds and escalation of antipredator responses in the chinese salamander cynops cyanurus: inter- and intra-individual variation. | aspects of the control of antipredator behavior, including short- and long-term response modifications, were examined for the chinese salamander cynops cyanurus. salamanders were tested for their antipredator behavior following repeated contact with the flicking tongue of a predatory snake. in a given trial, a salamander was contacted ten times by the snake and within-trial escalation or reduction in response was monitored. for each salamander, trials were repeated 6 times at 21-day intervals to ... | 1991 | 24923514 |
| comparative transcriptome reveal the potential adaptive evolutionary genes in andrias davidianus. | to search the evidence of molecular evolution mechanism for aquatic and cave habitat in andrias davidianus, the evolution analysis was carried out among several species transcriptome data. the transcriptome data of notophthalmus viridescens, xenopus tropicalis, cynops pyrrhogaster, hynobius chinensis and a. davidianus were obtained from the genbank and reassembled except xenopus tropicalis. the blast search of transcriptome data obtained 1244 single-copy orthologous genes among five species. a p ... | 2018 | 29483849 |
| hynobiidae origin in middle cretaceous corroborated by the new mitochondrial genome of hynobius chinensis. | hynobius chinensis was first described by günther in the nineteenth century. at present, the origins of the extinct hynobius chinensis on the zhoushan island (hynobius chinensis-zi) remain a mystery. it is the only species of family hynobiidae on the zhoushan island. however, there is very little empirical evidence regarding hynobius chinensis-zi phylogenetic relationship, and when or how did its ancestors colonized the island. here, we used mitochondrial genome data to recover the phylogeny of ... | 2015 | 25813862 |
| sexual dimorphism in the chinese endemic species pachyhynobius shangchengensis fei, qu and wu, 1983 (urodela: hynobiidae). | sexual dimorphism (sd) is a widespread phenomenon in most vertebrate species and is exhibited in a myriad of ways. in amphibians, sexual size dimorphism, in which females are larger than males, is the most common type, and sexual shape dimorphism varies among species. different selection forces (sexual selection, fecundity selection, and ecological selection) that act differently upon the sexes form the consequence of sd. thus, studies of sd provide information about the general intersexual dive ... | 2019 | 30809436 |
| transcriptomic analysis of endangered chinese salamander: identification of immune, sex and reproduction-related genes and genetic markers. | the chinese salamander (hynobius chinensis), an endangered amphibian species of salamander endemic to china, has attracted much attention because of its value of studying paleontology evolutionary history and decreasing population size. despite increasing interest in the hynobius chinensis genome, genomic resources for the species are still very limited. a comprehensive transcriptome of hynobius chinensis, which will provide a resource for genome annotation, candidate genes identification and mo ... | 2014 | 24498226 |