Phylogenetic relations among spirorbid subgenera and the evolution of opercular brooding

2003 ◽  
pp. 125-143
Author(s):  
Tara A. Macdonald
Keyword(s):  
Phylogenetic Relations

scholarly journals Phylogenetic relations and mitogenome‐wide similarity metrics reveal monophyly of Penaeus sensu lato

2021 ◽  
Vol 11 (5) ◽  
pp. 2040-2049
Author(s):  
Vinaya Kumar Katneni ◽  
Mudagandur S. Shekhar ◽  
Ashok Kumar Jangam ◽  
Balasubramanian C. Paran ◽  
Ashok Selvaraj ◽  
...  
Keyword(s):  
Similarity Metrics ◽  
Phylogenetic Relations

Use of tall fescue EST-SSR markers in phylogenetic analysis of cool-season forage grasses

Genome ◽  
2005 ◽  
Vol 48 (4) ◽  
pp. 637-647 ◽  
Author(s):  
M A. Rouf Mian ◽  
Malay C Saha ◽  
Andrew A Hopkins ◽  
Zeng-Yu Wang
Keyword(s):  
Phylogenetic Analysis ◽  
Ssr Markers ◽  
Tall Fescue ◽  
Related Species ◽  
Grass Species ◽  
Forage Grass ◽  
Forage Grasses ◽  
Cool Season ◽  
Phylogenetic Relations ◽  
Wide Range

Microsatellites or simple sequence repeats (SSRs) are highly useful molecular markers for plant improvement. Expressed sequence tag (EST)-SSR markers have a higher rate of transferability across species than genomic SSR markers and are thus well suited for application in cross-species phylogenetic studies. Our objectives were to examine the amplification of tall fescue EST-SSR markers in 12 grass species representing 8 genera of 4 tribes from 2 subfamilies of Poaceae and the applicability of these markers for phylogenetic analysis of grass species. About 43% of the 145 EST-SSR primer pairs produced PCR bands in all 12 grass species and had high levels of polymorphism in all forage grasses studied. Thus, these markers will be useful in a variety of forage grass species, including the ones tested in this study. SSR marker data were useful in grouping genotypes within each species. Lolium temulentum, a potential model species for cool-season forage grasses, showed a close relation with the major Festuca–Lolium species in the study. Tall wheatgrass was found to be closely related to hexaploid wheat, thereby confirming the known taxonomic relations between these species. While clustering of closely related species was found, the effectiveness of such data in evaluating distantly related species needs further investigations. The phylogenetic trees based on DNA sequences of selected SSR bands were in agreement with the phylogenetic relations based on length polymorphism of SSRs markers. Tall fescue EST-SSR markers depicted phylogenetic relations among a wide range of cool-season forage grass species and thus are an important resource for researchers working with such grass species.Key words: phylogeny, EST-SSR, forage grasses, tall fescue.

Morphological and Phylogenetic Relations Among the Darwin's Finches

Evolution ◽  
1984 ◽  
Vol 38 (5) ◽  
pp. 921 ◽  
Author(s):  
Dolph Schluter
Keyword(s):  
Darwin's Finches ◽  
Phylogenetic Relations ◽  
Darwin’S Finches

Phylogenetic relations of European shrubby taxa of the genusUsnea

2011 ◽  
Vol 43 (5) ◽  
pp. 427-444 ◽  
Author(s):  
Lauri SAAG ◽  
Tiiu TÕRRA ◽  
Andres SAAG ◽  
Ruth DEL-PRADO ◽  
Tiina RANDLANE
Keyword(s):  
Maximum Parsimony ◽  
Chemical Separation ◽  
Molecular Data ◽  
Beta Tubulin ◽  
Phylogenetic Relations ◽  
Branch Lengths ◽  
Nuclear Its ◽  
Molecular Characters

AbstractThis study focuses on EuropeanUsneaspecies with sorediate shrubby thalli, with the aim to evaluate the morphological and chemical separation of species in the light of molecular data. Twenty-twoUsneaspecies, including widely distributed taxa such asU. diplotypus, U. fulvoreagens, U. glabrescens, U. lapponica, U. subfloridana, U. substerilisandU. wasmuthii, were included in the study using Bayesian and maximum parsimony analyses of nuclear ITS and beta-tubulin sequences. The analyses showed that: 1) most taxa that are morphologically well delimited are also distinct by means of molecular characters, 2) shrubby taxa in the sectionUsneathat are difficult to determine by traditional characters form a group of closely related but still genetically distinct entities, exceptU. diplotypusandU. substeriliswhich appear to be polyphyletic. The branch lengths differed largely between two parts of the ITS tree (sectionsUsneaandCeratinae).Usnea intermediais proposed as the sexually reproducing counterpart for the sorediateU. lapponica. Additionally, some new chemotypes ofUsneaspecies were determined.

scholarly journals Comparison of Schmallenberg virus sequences isolated from mammal host and arthropod vector

Virus Genes ◽  
2018 ◽  
Vol 54 (6) ◽  
pp. 792-803 ◽  
Author(s):  
Julia Kęsik-Maliszewska ◽  
Aleksandra Antos ◽  
Jerzy Rola ◽  
Magdalena Larska
Keyword(s):  
Molecular Diversity ◽  
Nonstructural Protein ◽  
Protein S ◽  
Sequence Variability ◽  
Biting Midges ◽  
Phylogenetic Relations ◽  
Acute Infections ◽  
Next Generation Sequencing Ngs ◽  
Mammal Host ◽  
Generation Sequencing

Abstract Schmallenberg virus (SBV) is the member of Peribunyaviridae family, which comprises pathogens of importance for human and veterinary medicine. The virus is transmitted only between animals and mainly by biting midges of the genus Culicoides. This study was performed in order to determine SBV genetic diversity and elucidate the host–vector adaptation. All three viral segments were analysed for sequence variability and phylogenetic relations. The Polish SBV strains obtained from acute infections of cattle, congenital cases in sheep, and from Culicoides midges were sequenced using Sanger and next-generation sequencing (NGS) methods. The obtained sequences were genetically similar (99.2–100% identity) to the first-detected strain BH80/11—4 from German cattle. The sampling year and origin of Polish sequences had no effect on molecular diversity of SBV. Considering all analysed Polish as well as European sequences, ovine-derived sequences were the most variable, while the midge ones were more conserved and encompassed unique substitutions located mainly in nonstructural protein S. SBV sequences isolated from Culicoides are the first submitted to GenBank and reported.

Phylogenetic Relations of Rhizoplaca Zopf. from Anatolia Inferred from ITS Sequence Data

2006 ◽  
Vol 61 (5-6) ◽  
pp. 405-412 ◽  
Author(s):  
Demet Cansaran ◽  
Sümer Aras ◽  
İrfan Kandemir ◽  
Gökhan Halıcı
Keyword(s):  
Genetic Variability ◽  
Phylogenetic Tree ◽  
Sequence Data ◽  
Volcanic Rocks ◽  
Morphological Characteristics ◽  
Its Rdna ◽  
Its Sequence ◽  
Phylogenetic Relations ◽  
Rdna Sequences

Like many lichen-forming fungi, species of the genus Rhizoplaca have wide geographical distributions, but studies of their genetic variability are limited. The information about the ITS rDNA sequences of three species of Rhizoplaca from Anatolia was generated and aligned with other species from other countries and also with the data belonging to Lecanora species. The examined species were collected from the volcanic rocks of Mount Erciyes which is located in the middle of Anatolia (Turkey). The sequence data aligned with eight other samples of Rhizoplaca and six different species of Lecanora were obtained from GenBank. The results support the concept maintained by Arup and Grube (2000) that Rhizoplaca may not be a genus separate from Lecanora. According to the phylogenetic tree, Rhizoplaca melanopthalma from Turkey with two different samples of R. melanopthalma from Arizona (AF159929, AF159934) and a sample from Austria formed a group under the same branch. R. peltata and R. chrysoleuca samples from Anatolia located in two other branches of the tree formed sister groups with the samples of the same species from different countries. Although R. peltata remained on the same branch with other samples of the same species from other countries it was placed in a different branch within the group. When the three species from Anatolia were considered alone, it was noticed that Rhizoplaca melanopthalma and Rhizoplaca peltata are phylogenetically closer to each other than Rhizoplaca chrysoleuca; the morphological characteristics also support this result.

scholarly journals Population Structure and Phylogeny of Some U.S. Peach Cultivars

2022 ◽  
Vol 147 (1) ◽  
pp. 1-6
Author(s):  
Chunxian Chen ◽  
William R. Okie
Keyword(s):  
Population Structure ◽  
Prunus Persica ◽  
Principal Component ◽  
Pairwise Distance ◽  
Limiting Factors ◽  
Genetic Admixture ◽  
Department Of Agriculture ◽  
Phylogenetic Relations ◽  
Cultivar Groups ◽  
Peach Breeding

Peach (Prunus persica) cultivars maintained at the U.S. Department of Agriculture program at Byron, GA, have never been characterized with any molecular markers. In this study, 20 microsatellite markers were used to genotype 112 cultivars and the data were analyzed to discern their population structure and phylogenetic relationships. STRUCTURE simulations revealed four K clusters and broad genetic admixture among the cultivars. Principal coordinate analysis (PCoA) showed the cultivar groups from western, northeastern, and southeastern U.S. states were adjacent to each other except cultivars from Michigan (close to most southeastern state groups) and Florida (most distant from the other groups). Principal component analysis (PCA) showed that these cultivars had no obvious PCA partitioning boundaries. The intertwined distribution in both PCoA and PCA partitions suggested many of them were genetically closely related to each other largely because most shared same ancestral parentages. Most pairwise distance means within and between the cultivar groups were relatively low, suggesting close phylogenetic relations among those cultivars, as were demonstrated in the phylogenetic tree. Limiting factors and perspectives relevant to peach breeding are discussed.

scholarly journals Phylogenetic relations in section Arachis based on seed protein profile

1991 ◽  
Vol 82 (5) ◽  
pp. 593-597 ◽  
Author(s):  
A. K. Singh ◽  
S. Sivaramakrishnan ◽  
Melak H. Mengesha ◽  
C. D. Ramaiah
Keyword(s):  
Seed Protein ◽  
Protein Profile ◽  
Phylogenetic Relations
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