Results 1 to 10 of about 39,883 (189)

Monophyly of brachiopods and phoronids: reconciliation of molecular evidence with Linnaean classification (the subphylum Phoroniformea nov.) [PDF]

, 2000
Molecular phylogenetic analyses of aligned 18S rDNA gene sequences from articulate and inarticulate brachiopods representing all major extant lineages, an enhanced set of phoronids and several unrelated protostome taxa, confirm previous indications that ...
Bernard L. Cohen, Emig C. C., Emig C. C., Ka, Winnepenninckx B.   +4 more
core   +4 more sources

Mathematical Models and Biological Meaning: Taking Trees Seriously [PDF]

, 2008
We compare three basic kinds of discrete mathematical models used to portray phylogenetic relationships among species and higher taxa: phylogenetic trees, Hennig trees and Nelson cladograms. All three models are trees, as that term is commonly used in mathematics; the difference between them lies in the biological interpretation of their vertices and ...
Blackburn, David, Martin, Jeremy, Wiley, E. O.   +2 more
arxiv   +6 more sources

Calibrated Tree Priors for Relaxed Phylogenetics and Divergence Time Estimation [PDF]

arXiv, 2011
The use of fossil evidence to calibrate divergence time estimation has a long history. More recently Bayesian MCMC has become the dominant method of divergence time estimation and fossil evidence has been re-interpreted as the specification of prior distributions on the divergence times of calibration nodes.
Alexei J. Drummond, Drummond, Drummond, Drummond, Drummond, Gernhard, Griffiths, Joseph Heled, Kingman, Phillips, Rannala, Sithaldeen, Stadler, Stadler   +13 more
arxiv   +5 more sources

Comparative Mitogenomics in the Genus Chlorophorus (Coleoptera: Cerambycidae) and Its Phylogenetic Implications. [PDF]

Insects
Chlorophorus Chevrolat, 1863, one of the most species-rich genera of Clytini, comprises 36 subgenera and 302 species/subspecies, with some species being of significant economic importance.
Fu Z, Chen L, Tian L, Wang Z, Li Z.
europepmc   +2 more sources

Wētā Aotearoa-Polyphyly of the New Zealand Anostostomatidae (Insecta: Orthoptera). [PDF]

Insects
The Anostostomatidae of Aotearoa New Zealand are well-characterized at the genus and species level, but the higher-level systematics of the family as a whole remain poorly resolved.
Trewick SA, Taylor-Smith BL, Morgan-Richards M.   +2 more
europepmc   +2 more sources

Clades, clans and reciprocal monophyly under neutral evolutionary models [PDF]

arXiv, 2011
The Yule model and the coalescent model are two neutral stochastic models for generating trees in phylogenetics and population genetics, respectively. Although these models are quite different, they lead to identical distributions concerning the probability that pre-specified groups of taxa form monophyletic groups (clades) in the tree.
Sha Zhu, J. H. Degnan, Mike Steel
arxiv   +3 more sources

Mitochondrial and nuclear genes suggest that stony corals are monophyletic but most families of stony corals are not (Order Scleractinia, Class Anthozoa, Phylum Cnidaria) [PDF]

, 2008
Modern hard corals (Class Hexacorallia; Order Scleractinia) are widely studied because of their fundamental role in reef building and their superb fossil record extending back to the Triassic.
AF Budd, Allen Collins, AM Kerr, Ann F. Budd, BL Willis, CA Chen, CA Chen, Carden Wallace, Chang-Feng Dai, Chaolun Allen Chen, Charles Sheppard, Chienhsun Chen, CT Beagley, D Posada, DJ Zwickl, DL Swofford, DR Bellwood, F Benzoni, GM Mace, H Fukami, H Kishino, H Shimodaira, H Shimodaira, H Shimodaira, Hironobu Fukami, J Alloiteau, JC den Hartog, JEN Veron, JP Cuif, KE Carpenter, Kenji Iwao, M Daly, M Medina, MC Le Goff-Vitry, MR Brugler, MW Chace, N Boury-Esnault, Nancy Knowlton, Niyaz Ahmed, P Goloboff, R Ronquist, SL Romano, SL Romano, SL Romano, TL Shearer, TR Buckley, TW Vaughan, WV Wei, Yao-Yang Chuang   +48 more
core   +16 more sources

Phylogenomics of Salvia L. subgenus Calosphace (Lamiaceae)

Frontiers in Plant Science, 2021
The evolutionary relationships of Salvia have been difficult to estimate. In this study, we used the Next Generation Sequencing method Hyb-Seq to evaluate relationships among 90 Lamiaceae samples, including representatives of Mentheae, Ocimeae, Salvia ...
Sabina Irene Lara-Cabrera, Maria de la Luz Perez-Garcia, Carlos Alonso Maya-Lastra, Juan Carlos Montero-Castro, Grant T. Godden, Angelica Cibrian-Jaramillo, Amanda E. Fisher, J. Mark Porter   +7 more
doaj   +1 more source

Phylogenetic and Structural Analysis of NIN-Like Proteins With a Type I/II PB1 Domain That Regulates Oligomerization for Nitrate Response

Frontiers in Plant Science, 2021
Absorption of macronutrients such as nitrogen is a critical process for land plants. There is little information available on the correlation between the root evolution of land plants and the protein regulation of nitrogen absorption and responses.
Kuan-Ting Hsin, Tzu-Jing Yang, Tzu-Jing Yang, Tzu-Jing Yang, Yu-Hsuan Lee, Yi-Sheng Cheng, Yi-Sheng Cheng, Yi-Sheng Cheng   +7 more
doaj   +1 more source

Evaluating the monophyly of Mammillaria series Supertextae (Cactaceae) [PDF]

PhytoKeys, 2021
Mammillaria (Cactaceae) taxonomy has been historically problematic due to the morphological variability and sympatry of the species. This has led to several proposals for infrageneric classification, including subgeneric, section and series categories ...
Cristian R. Cervantes, Silvia Hinojosa-Alvarez, Ana Wegier, Ulises Rosas, Salvador Arias   +4 more
doaj   +3 more sources