On the Cryptic Speciation in the Mosses with East Asia-East North America Disjunction: A Case Study of Two Poorly Understood Mosses from the Southern Extremity of the Russian Far East.

A survey of the moss flora of the southernmost part of the Russian Primorsky Territory yielded several intriguing taxa, whose identity is assessed herein based on an integrative morpho-molecular approach. was previously known in inland Asia only from the Sino-Himalayan region and the new locality is distant from the earlier known ones to ca. 3000 km.

An Insight into the Biology of the Rare and Peculiar Moss (Pottiaceae): A Conservation Physiology Approach.

The biological features of the recently described peculiar and rare pottioid moss species have been studied. A conservation physiology approach through in vitro axenic establishment and laboratory-controlled tests was applied to learn more about its development, physiology, and ecology. Additionally, ex situ collection for this species was established, and a micropropagation methodology was developed.

New Taxonomic Arrangement of s.l. and s.l. (Dicranidae, Bryophyta).

The recent molecular phylogenetic study of the families Aongstroemiaceae and Dicranellaceae, which resolved the genera and as polyphyletic, indicated the need for changes in their circumscription and provided new morphological evidence to support the formal description of newly recognized lineages. Following up on these results, the present study adds another molecular marker, the highly informative region, to a subset of previously analyzed taxa and presents molecular data from newly analyzed austral representatives of and collections of -like plants from North Asia. The molecular data are linked with morphological traits, particularly the leaf shape, tuber morphology, and capsule and peristome characters.

Need for split: integrative taxonomy reveals unnoticed diversity in the subaquatic species of (Pylaisiaceae, Bryophyta).

We present an integrative molecular and morphological study of subaquatic representatives of the genus (Pylaisiaceae, Bryophyta), supplemented by distribution modelling of the revealed phylogenetic lineages. Phylogenetic analyses of nuclear and plastid datasets combined with the assemble species by automatic partitioning (ASAP) algorithm revealed eight distinct species within the traditionally circumscribed and . These species are therefore yet another example of seemingly widely distributed taxa that harbour molecularly well-differentiated lineages with narrower distribution ranges.

MHA Herbarium: Collections of mosses from Yana-Indigirka Region, Yakutia, Russia.

Background: The Skvortsov Herbarium of the Tsitsin Main Botanical Garden, Russian Academy of Sciences (MHA) in the 1945-1980s dealt with vascular plants and only scattered occasional collections of bryophytes and lichens were accumulated there without special arrangement. Since the late 1980s, the bryophyte studies in the MHA Herbarium became permanent and several projects were started since then, including the currently conducted "Moss Flora of Russia". There are many white spots on the map of bryophyte exploration of Russia, but one of the most conspicuous was Yakutia, the largest administrative unit of Russia, covering 3,081,000 km.

Cell Division Patterns in the Peristomial Layers of the Moss Genus Two Hypotheses and a Third Solution.

The Chilean endemic genus belongs to the Gigaspermaceae, one of the most basal groups of arthrodontous mosses. While none of the species in this family has a peristome, earlier stages of sporophyte development often disclose its basic structure. The study of sporophytes at the early stages of development was conducted to identify possible similarities with , the genus sister to Gigaspermaceae plus all other arthrodontous mosses in the moss phylogenetic tree.

Otopetrin 1 is required for otolith formation in the zebrafish Danio rerio.

Orientation with respect to gravity is essential for the survival of complex organisms. The gravity receptor is one of the phylogenetically oldest sensory systems, and special adaptations that enhance sensitivity to gravity are highly conserved. The fish inner ear contains three large extracellular biomineral particles, otoliths, which have evolved to transduce the force of gravity into neuronal signals.

Molecular mechanisms underlying ectopic otoconia-like particles in the endolymphatic sac of embryonic mice.

Otoconin-90, the principal otoconial matrix protein, provided a tool to investigate the molecular mechanism of otoconial morphogenesis. The endolymphatic sac of the embryonic chick and guinea pig contain otoconia. Here, we show that the embryonic mouse transiently expresses ectopic otoconia in the endolymphatic sac.

The cochlear F-box protein OCP1 associates with OCP2 and connexin 26.

OCP1 and OCP2 are the most abundant proteins in the organ of Corti. Their distributions map identically to the epithelial gap-junction system, which unites the supporting cell population. Sequence data imply that OCP1 and OCP2 are subunits of an SCF E3 ubiquitin ligase.

Toward an understanding of cochlear homeostasis: the impact of location and the role of OCP1 and OCP2.

The central role of the supporting cell population, or epithelial support complex (ESC), in cochlear homeostasis has gained general acceptance. That the details of this role may vary markedly with location, however, remains poorly appreciated. For example, the K+ recirculation pathway may well be dictated by position along the cochlear axis: a perilymphatic route near the apex and a transcellular one near the base.

Non-syndromic vestibular disorder with otoconial agenesis in tilted/mergulhador mice caused by mutations in otopetrin 1.

Otoconia are biominerals within the utricle and saccule of the inner ear that are critical for the perception of gravity and linear acceleration. The classical mouse mutant tilted (tlt) and a new allele, mergulhador (mlh), are recessive mutations that affect balance by impairing otoconial morphogenesis without causing collateral deafness. The mechanisms governing otoconial biosynthesis are not known.