Abstract：
BACKGROUND:Many earthworm species demonstrate significant cryptic diversity, with several highly diverged mitochondrial lineages found within most of the taxa studied to date. The status of differences between these lineages on the nuclear level is still unclear. Because of widespread polyploidy in earthworms, most studies were limited to two nuclear loci, the ribosomal and the histone clusters. Here we attempted to elucidate the status of a set of genetic lineages within Eisenia nordenskioldi nordenskioldi, an earthworm species from Northern Asia with high intraspecific diversity. We performed RNA-seq on an IonTorrent platform for five specimens of this species belonging to five genetic lineages, as well as two outgroups from the family Lumbricidae, the congenetic E. andrei, and Lumbricus rubellus. RESULTS:We de novo assembled transcriptomes and constructed datasets of genes present in all seven specimens using broad (ProteinOrtho; 809 genes) and narrow (HaMStR; 203 genes) ortholog assignment. The majority of orthologs had identical amino acid sequences in all studied specimens, which we believe was due to strong bias towards the most conserved genes. However, for the rest of genes the differences among the lineages were lower than those between them and the congeneric E. andrei. Both datasets yielded phylogenetic trees with the same topology. E. n. nordenskioldi was found to be monophyletic. The differences on the genetic level had no concordance with geography, implying complex history of dispersal. CONCLUSIONS:We found that genetic lineages of E. n. nordenskioldi are genetically distinct on nuclear level and probably diverged long ago. Current data implies that they might even represent distinct species within the E. nordenskioldi species complex.
journal_name
BMC Evol Bioljournal_title
BMC evolutionary biologyauthors
Shekhovtsov SV,Ershov NI,Vasiliev GV,Peltek SEdoi
10.1186/s12862-019-1370-ysubject
Has Abstractpub_date
2019-02-26 00:00:00pages
50issue
Suppl 1issn
1471-2148pii
10.1186/s12862-019-1370-yjournal_volume
19pub_type
杂志文章abstract：BACKGROUND:Publication of the first diatom genome, that of Thalassiosira pseudonana, established it as a model species for experimental and genomic studies of diatoms. Virtually every ensuing study has treated T. pseudonana as a marine diatom, with genomic and experimental data valued for their insights into the ecolog...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-11-125
更新日期：2011-05-14 00:00:00
abstract：BACKGROUND:The reproductive ground plan hypothesis of social evolution suggests that reproductive controls of a solitary ancestor have been co-opted during social evolution, facilitating the division of labor among social insect workers. Despite substantial empirical support, the generality of this hypothesis is not un...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-11-95
更新日期：2011-04-13 00:00:00
abstract：BACKGROUND:Hymenoptera that mass-provision their offspring have evolved elaborate antimicrobial strategies to ward off fungal infestation of the highly nutritive larval food. Females of the Afro-European Philanthus triangulum and the South American Trachypus elongatus (Crabronidae, Philanthinae) embalm their prey, para...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-015-0565-0
更新日期：2015-12-21 00:00:00
abstract：BACKGROUND:In the arms race between hosts and parasites, genes involved in the immune response are targets for natural selection. Toll-Like Receptor (TLR) genes play a role in parasite detection as part of the innate immune system whereas Major Histocompatibility Complex (MHC) genes encode proteins that display antigen...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-019-1435-y
更新日期：2019-05-22 00:00:00
abstract：BACKGROUND:Cetacean brain size expansion is an enigmatic event in mammalian evolution, yet its genetic basis remains poorly explored. Here, all exons of the seven primary microcephaly (MCPH) genes that play key roles in size regulation during brain development were investigated in representative cetacean lineages. RES...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-017-1051-7
更新日期：2017-08-29 00:00:00
abstract：BACKGROUND:The reactive oxygen-generating NADPH oxidases (Noxes) function in a variety of biological roles, and can be broadly classified into those that are regulated by subunit interactions and those that are regulated by calcium. The prototypical subunit-regulated Nox, Nox2, is the membrane-associated catalytic subu...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-7-178
更新日期：2007-09-27 00:00:00
abstract：BACKGROUND:Despite the common assumption that multiple mating should in general be favored in males, but not in females, to date there is no consensus on the general impact of multiple mating on female fitness. Notably, very little is known about the genetic and physiological features underlying the female response to ...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-014-0239-3
更新日期：2014-11-19 00:00:00
abstract：BACKGROUND:While the pathogenesis and epidemiology of tuberculosis are well studied, relatively little is known about the evolution of the infectious agent Mycobacterium tuberculosis, especially at the within-host level. The insertion sequence IS6110 is a genetic marker that is widely used to track the transmission of ...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-4-31
更新日期：2004-09-09 00:00:00
abstract：BACKGROUND:The Neotropical ovenbird-woodcreeper family (Furnariidae) is an avian group characterized by exceptionally diverse ecomorphological adaptations. For instance, members of the family are known to construct nests of a remarkable variety. This offers a unique opportunity to examine whether changes in nest design...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-9-268
更新日期：2009-11-21 00:00:00
abstract：BACKGROUND:The Indo-Pacific region has the largest number of seagrass species worldwide and this region is considered as the origin of the Hydrocharitaceae. Halophila ovalis and its closely-related species belonging to the Hydrocharitaceae are well-known as a complex taxonomic challenge mainly due to their high morphol...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-14-92
更新日期：2014-04-30 00:00:00
abstract：BACKGROUND:The entomopathogenic nematode Steinernema carpocapsae has been used worldwide as a biocontrol agent for insect pests, making it an interesting model for understanding parasite-host interactions. Two models propose that these interactions are co-evolutionary processes in such a way that equilibrium is never r...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-017-0935-x
更新日期：2017-04-26 00:00:00
abstract：BACKGROUND:NASP is an essential protein in mammals that functions in histone transport pathways and maintenance of a soluble reservoir of histones H3/H4. NASP has been studied exclusively in Opisthokonta lineages where some functional diversity has been reported. In humans, growing evidence implicates NASP miss-regulat...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-14-139
更新日期：2014-06-20 00:00:00
abstract：BACKGROUND:The mitochondria of contemporary organisms contain fewer genes than the ancestral bacteria are predicted to have contained. Because most of the mitochondrial proteins are encoded in the nucleus, the genes would have been transferred from the mitochondrion to the nucleus at some stage of evolution and they mu...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-8-314
更新日期：2008-11-14 00:00:00
abstract：BACKGROUND:The Marburg virus (MARV) has a negative-sense single-stranded RNA genome, belongs to the family Filoviridae, and is responsible for several outbreaks of highly fatal hemorrhagic fever. Codon usage patterns of viruses reflect a series of evolutionary changes that enable viruses to shape their survival rates a...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-015-0456-4
更新日期：2015-08-26 00:00:00
abstract：BACKGROUND:The world is rapidly urbanizing, and only a subset of species are able to succeed in stressful city environments. Efficient genome-enabled stress response appears to be a likely prerequisite for urban adaptation. Despite the important role ants play in the ecosytem, only the genomes of ~13 have been sequence...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-016-0867-x
更新日期：2017-02-07 00:00:00
abstract：BACKGROUND:Tracking newly emergent virulent populations in agroecosystems provides an opportunity to increase our understanding of the co-evolution dynamics of pathogens and their hosts. On the one hand host plants exert selective pressure on pathogen populations, thus dividing them into subpopulations of different vir...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-018-1122-4
更新日期：2018-01-19 00:00:00
abstract：BACKGROUND:Cyanobacteria are photoautotrophic prokaryotes with wide variations in genome sizes and ecological habitats. Peroxiredoxin (PRX) is an important protein that plays essential roles in protecting own cells against reactive oxygen species (ROS). PRXs have been identified from mammals, fungi and higher plants. H...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-12-220
更新日期：2012-11-16 00:00:00
abstract：BACKGROUND:Disparity in the timing of biological events occurs across a variety of systems, yet the understanding of genetic basis underlying diverse phenologies remains limited. Variation in maturation timing occurs in steelhead trout, which has been associated with greb1L, an oestrogen target gene. Previous technique...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-018-1255-5
更新日期：2018-09-15 00:00:00
abstract：BACKGROUND:Polymorphisms of single amino acid repeats (SARPs) are a potential source of genetic variation for rapidly evolving morphological traits. Here, we characterize variation in and test for an association between SARPs and head shape, a trait under strong sexual selection, in the stalk-eyed fly, Teleopsis dalman...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-10-227
更新日期：2010-07-27 00:00:00
abstract：BACKGROUND:The genus Ilex (Aquifoliaceae) has a near-cosmopolitan distribution in mesic habitats from tropical to temperate lowlands and in alpine forests. It has a high rate of hybridization and plastid capture, and comprises four geographically structured plastid groups. A previous study showed that the plastid rbcL ...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-019-1521-1
更新日期：2019-10-21 00:00:00
abstract：BACKGROUND:Recently we proposed an evolutionary explanation for a spinal pathology that afflicts many people, intervertebral disc herniation (Plomp et al. [2015] BMC Evolutionary Biology 15, 68). Using 2D data, we found that the bodies and pedicles of lower vertebrae of pathological humans were more similar in shape to...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-019-1550-9
更新日期：2019-12-16 00:00:00
abstract：BACKGROUND:Vertebrate skin appendages are constructed of keratins produced by multigene families. Alpha (α) keratins are found in all vertebrates, while beta (β) keratins are found exclusively in reptiles and birds. We have studied the molecular evolution of these gene families in the genomes of 48 phylogenetically div...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-014-0249-1
更新日期：2014-12-12 00:00:00
abstract：BACKGROUND:Morphological diversity among closely related animals can be the result of differing growth patterns. The Australian radiation of agamid lizards (Amphibolurinae) exhibits great ecological and morphological diversity, which they have achieved on a continent-wide scale, in a relatively short period of time (30...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-018-1335-6
更新日期：2019-01-08 00:00:00
abstract：BACKGROUND:The host range of a pathogenic bacterial strain likely influences its effective population size, which in turn affects the efficacy of selection. Transmission between competent hosts may occur more frequently for host generalists than for specialists. This could allow higher bacterial population densities to...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-015-0335-z
更新日期：2015-03-31 00:00:00
abstract：BACKGROUND:Previous phylogenetic analyses of African elephants have included limited numbers of forest elephant samples. A large-scale assessment of mitochondrial DNA diversity in forest elephant populations here reveals a more complex evolutionary history in African elephants as a whole than two-taxon models assume. ...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-7-244
更新日期：2007-12-19 00:00:00
abstract：BACKGROUND:Specific host-parasite systems often embody a particular co-distribution phenomenon, in which the parasite's phylogeographic pattern is dependent on its host. In practice, however, both congruent and incongruent phylogeographic patterns between the host and the parasite have been reported. Here, we compared ...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-014-0180-5
更新日期：2014-08-17 00:00:00
abstract：BACKGROUND:Oceans are high gene flow environments that are traditionally believed to hamper the build-up of genetic divergence. Despite this, divergence appears to occur occasionally at surprisingly small scales. The Galápagos archipelago provides an ideal opportunity to examine the evolutionary processes of local dive...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-8-150
更新日期：2008-05-16 00:00:00
abstract：BACKGROUND:Phylogeography is an important tool that can be used to reveal cryptic biodiversity and to better understand the processes that promote lineage diversification. We studied the phylogeographic history of the Arboreal Salamander (Aneides lugubris), a wide-ranging species endemic to the California floristic pro...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-015-0524-9
更新日期：2015-11-04 00:00:00
abstract：BACKGROUND:Arthropods are infected by a wide diversity of maternally transmitted microbes. Some of these manipulate host reproduction to facilitate population invasion and persistence. Such parasites transmit vertically on an ecological timescale, but rare horizontal transmission events have permitted colonisation of n...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/1471-2148-7-238
更新日期：2007-11-29 00:00:00
abstract：BACKGROUND:The flat periwinkles, Littorina fabalis and L. obtusata, are two sister species widely distributed throughout the Northern Atlantic shores with high potential to inform us about the process of ecological speciation in the intertidal. However, whether gene flow has occurred during their divergence is still a ...
journal_title：BMC evolutionary biology
pub_type： 杂志文章
doi：10.1186/s12862-019-1561-6
更新日期：2020-02-10 00:00:00
