Results 41 to 50 of about 66,141 (268)
Nicotiana L. is a genus rich in polyploidy, which represents an ideal natural system for investigating speciation, biodiversity, and phytogeography.
Shuaibin Wang +7 more
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Molecular and morphological clocks for estimating evolutionary divergence times [PDF]
Abstract Background: Matrices of morphological characters are frequently used for dating species divergence times in systematics. In some studies, morphological and molecular character data from living taxa are combined, whereas others use morphological characters from extinct taxa as well.
Jose Barba-Montoya +2 more
openaire +5 more sources
Time-calibrated phylogeny for phlebotomine sand flies based on the Fossilized Birth-Death process and the inclusion of divergence time estimation of each node, considering the Maximum Clade Credibility (MCC) tree.
Jesús A. Díaz-Cruz (16469351) +10 more
core +1 more source
A Mitochondrial Genome Phylogeny of Cleridae (Coleoptera, Cleroidea)
The predaceous beetle family Cleridae includes a large and widely distributed rapid radiation, which is vital for the ecosystem. Despite its important role, a number of problems remain to be solved regarding the phylogenetic inter-relationships, the ...
Lilan Yuan +5 more
doaj +1 more source
Divergence Time and Evolutionary Rate Estimation with Multilocus Data [PDF]
Bayesian methods for estimating evolutionary divergence times are extended to multigene data sets, and a technique is described for detecting correlated changes in evolutionary rates among genes. Simulations are employed to explore the effect of multigene data on divergence time estimation, and the methodology is illustrated with a previously published
Jeffrey L, Thorne, Hirohisa, Kishino
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Improved Multiple-Model Adaptive Estimation Method for Integrated Navigation with Time-Varying Noise
The accurate noise parameter is essential for the Kalman filter to obtain optimal estimates. However, problems such as variations in the noise environment and measurement anomalies can cause degradation of estimation accuracy or even divergence.
Jinhao Song +6 more
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The anaerobic gut fungi (AGF), or Neocallimastigomycota, inhabit the rumen and alimentary tract of herbivorous mammals, where they play important roles in the degradation of plant fiber.
Yan Wang +5 more
doaj +1 more source
Estimation of Divergence Times for Major Lineages of Primate Species [PDF]
Although the phylogenetic relationships of major lineages of primate species are relatively well established, the times of divergence of these lineages as estimated by molecular data are still controversial. This controversy has been generated in part because different authors have used different types of molecular data, different statistical methods ...
Galina V, Glazko, Masatoshi, Nei
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The genus Sinocyclocheilus is distributed in Yun-Gui Plateau and its surrounding region only, within more than 10 cave species showing different degrees of degeneration of eyes and pigmentation with wonderful adaptations.
He, SP, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China +5 more
core +1 more source
The hardware-in-the-loop (HIL) simulation is an important approach to test space robotic operations, rendering virtual free-floating dynamics on robotic facilities.
Jun He, Mingjin Shen, Feng Gao
doaj +1 more source

