Phylogenetic inference

With the aim of inferring phylogenetic relationships among 86 species (including 45 species from Vietnam) mostly of the subfamily Convallarioideae (=Nolinoideae) (Asparagaceae sensu APG IV), we analyzed their chloroplast DNA sequences (rbcL and trnL-F) by both Bayesian inference (BI) and maximum likelihood (ML) methods. Our dataset included six of the seven tribes classified in this subfamily; Convallarieae, Dracaeneae, Liriopeae Nolineae, Polygonateae and Rusceae (Eriospermeae not examined).

17p dianmotminh02 03-05-2024 3 2   Download

Ebook "Neanderthals revisited: New approaches and perspectives" presents cutting-edge research by leading scientists re-examining the major debates in Neanderthal research with the use of innovative state-of-the art methods and exciting new theoretical approaches. Topics addressed include the re-evaluation of Neanderthal anatomy, inferred adaptations and habitual activities, developmental patterns, phylogenetic relationships, and the Neanderthal extinction.

336p tachieuhoa 28-01-2024 3 2   Download

Echinostomiasis is a neglected disease caused by the intestinal flukes (family Echinostomatidae, suborder Echinostomata) and is common in communities in Asian countries, such as India, Indonesia, the Philippines, China, Malaysia, Singapore, Korea, Japan, Thailand, Laos, Cambodia and Vietnam. The genetic markers from the nuclear ribosomal transcription units are commonly used in genetic studies and phylogenetic analyses.

11p vimulcahy 18-09-2023 5 3   Download

In this study, we sequenced the chloroplast gene region (matK) to identify the genetic characteristics of T. chantrieri and their phylogenetic inference in the genus Tacca in Ba Vi National Park (Ba Vi NP). This study contributes to developing a DNA barcode database as a foundation for conservation, evolution, and biological systems.

11p viblackwidow 07-04-2023 11 3   Download

In this study, a new species, P. nana, from northeast Chongqing in the north of the Yangtze River is described and illustrated. Bayesian inference and maximum likelihood analyses based on two nuclear ribosomal DNA regions (ITS and ETS) and three plastid DNA markers (rpl32-trnL, rps16, and trnL-trnF) were carried out to explore the phylogenetic position of the new species within Paraphlomis.

8p lyhuyenthu 31-01-2023 6 2   Download

In this study, we have sequences nuclear gene region (ITS-rDNA) from 9 individuals of Tacca chantrieri André belonging to three natural populations (Song Hinh Nature Reserve, Phu Yen Province; Cuc Phuong National Park, Ninh Binh province and Ba Vi National Park, Ha Noi city) to investigate genetic character and their phylogenetic inference in the genus Tacca. DNA was extracted from the tissue of leaves.

8p vilamborghini 12-10-2022 7 4   Download

The phylogenetic relationship of 83 taxa of Santalaceae s.l. was reconstructed based on the molecular data sets including the nuclear ribosomal (small and large subunit rDNA) and the chloroplast rbcL, matK, and trnL-F regions. The Maximum likelihood (ML) and Bayesian inference (BI) methods were used to build the phylogenetic trees.

8p viellenkullman 13-05-2022 6 1   Download

Here, we present a major advance of the OrthoFinder method. This extends OrthoFinder’s high accuracy orthogroup inference to provide phylogenetic inference of orthologs, rooted gene trees, gene duplication events, the rooted species tree, and comparative genomics statistics.

14p vielonmusk 30-01-2022 7 1   Download

Single-cell sequencing enables the inference of tumor phylogenies that provide insights on intra-tumor heterogeneity and evolutionary trajectories. Recently introduced methods perform this task under the infinite-sites assumption, violations of which, due to chromosomal deletions and loss of heterozygosity, necessitate the development of inference methods that utilize finite-sites models.

20p vialfrednobel 29-01-2022 5 0   Download

Single-cell sequencing promises a high-resolution view of genetic heterogeneity and clonal evolution in cancer. However, methods to infer tumor evolution from single-cell sequencing data lag behind methods developed for bulk-sequencing data. Here, we present OncoNEM, a probabilistic method for inferring intra-tumor evolutionary lineage trees from somatic single nucleotide variants of single cells.

14p viaristotle 29-01-2022 13 0   Download

Although scRNA-seq is now ubiquitously adopted in studies of intratumor heterogeneity, detection of somatic mutations and inference of clonal membership from scRNA-seq is currently unreliable. We propose DENDRO, an analysis method for scRNA-seq data that clusters single cells into genetically distinct subclones and reconstructs the phylogenetic tree relating the subclones.

15p viarchimedes 26-01-2022 6 0   Download

The pairing of CRISPR/Cas9-based gene editing with massively parallel single-cell readouts now enables large-scale lineage tracing. However, the rapid growth in complexity of data from these assays has outpaced our ability to accurately infer phylogenetic relationships.

27p viarchimedes 26-01-2022 11 0   Download

Ablepharus Lichtenstein, 1823, which includes ten species, is distributed in eastern Europe and Asia. Four species are recorded in Turkey: A. kitaibelii, A. chernovi, A. bivittatus, and A. budaki. After molecular and morphological studies in Anatolia, the phylogenetic relationship of the genus is still very complicated. Here, we investigate the taxonomic status of Ablepharus in Anatolia using morphological and molecular methods. The genetic structure of Ablepharus populations in Anatolia was analyzed using both the nuclear (CMOS) and mitochondrial (cyt b and COI) gene regions.

12p dolomite36 30-12-2021 16 1   Download

Chaetognaths (arrow worms) are an enigmatic group of transparent planktonic invertebrates and play an important role in the marine food web. Their morphological and developmental features have raised extensive debates since the discovery of the phylum in the 18th century. Uncertainty in the phylogenetic placement of certain chaetognath species still exists and is puzzling many scientists who have tried to clarify this task.

11p dolomite36 30-12-2021 9 1   Download

The common vole Microtus arvalis (Pallas, 1778) is the most widespread Microtus species. It has two forms – the European arvalis form (2n: 46, NF: 84) and the Asian obscurus form (2n: 46, NF: 72). The present study aimed to clarify the taxonomic status of M. arvalis populations distributed in Eastern Turkey, Europe and Asia by analysing two mitochondrial (CYTB and COX1) and one nuclear (IRBP) markers.

17p dolomite36 30-12-2021 12 0   Download

The significant negative neutrality test values are the evidence of expansion of the total population. H. sieboldiana and H. kiyosumiensis are more widely distributed than other taxa. H. sieboldiana, H. alismifolia, H. longipes var. gracillima and H. kikutii var. polyneuron showed the excessive low frequency variants.

10p schindler 30-12-2021 10 0   Download

Phylogenetic trees are useful tools to infer evolutionary relationships between genetic entities. Phylogenetics enables not only evolution-based gene clustering but also the assignment of gene duplication and deletion events to the nodes when coupled with statistical approaches such as bootstrapping. However, extensive gene duplication and deletion events bring along a challenge in interpreting phylogenetic trees and require manual inference.

7p langthannam 29-12-2021 14 0   Download

Tragopogon porrifolius occurs in Turkey with 3 taxonomically confused subspecies: T. porrifolius subsp. eriospermus, T. porrifolius subsp. longirostris, and T. porrifolius subsp. abbreviatus. In the present paper, T. porrifolius subsp. abbreviatus endemic to Turkey is raised at specific level based on morphological and molecular analysis. After detailed assessment of original herbarium specimens and literature studies, we found that this name is not typified yet.

14p tudichquannguyet 29-11-2021 2 1   Download

The genus Sechium includes 11 species, which are highly related to the genus Sicyos. Sechium is native to Mesoamerica, but only S. edule and S. tacaco have been domesticated. Sechium edule is the most exploited species of the genus due to its broad phenotypic variability. A total of 68 samples from the species S. chinantlense, S. compositum, S. hintonii and S. edule were evaluated, as well as their respective varietal complexes (albus, nigrum and virens groups), thereby amplifying the loci of mitochondrial DNA (CoxIII), chloroplast DNA (rbcL) and the nuclear ribosomal ITS1-5.8S-ITS2 region.

13p tudichquannguyet 29-11-2021 11 1   Download

The Cornales is the basal lineage of the asterids, the largest angiosperm clade. Phylogenetic relationships within the order were previously not fully resolved. Fifteen plastid genomes representing 14 species, ten genera and seven families of Cornales were newly sequenced for comparative analyses of genome features, evolution, and phylogenomics based on different partitioning schemes and filtering strategies.

14p vilarryellison 29-10-2021 5 0   Download