scholarly journals A phylogenetic analysis of Rhamnaceae using rbcL and trnL -F plastid DNA sequences

2000 ◽  
Vol 87 (9) ◽  
pp. 1309-1324 ◽  
Author(s):  
James E. Richardson ◽  
Michael F. Fay ◽  
Quentin C. B. Cronk ◽  
Diane Bowman ◽  
Mark W. Chase
Keyword(s):  
Phylogenetic Analysis ◽  
Dna Sequences ◽  
Plastid Dna

A Phylogenetic Analysis of Loasaceae Subfamily Loasoideae Based on Plastid DNA Sequences

2005 ◽  
Vol 166 (2) ◽  
pp. 289-300 ◽  
Author(s):  
Larry Hufford ◽  
Michelle M. McMahon ◽  
Robin O’Quinn ◽  
Muriel E. Poston
Keyword(s):  
Phylogenetic Analysis ◽  
Dna Sequences ◽  
Plastid Dna

scholarly journals Molecular phylogeny of Saudi Arabian Tetraena Maxim. and Zygophyllum L. (Zygophyllaceae) based on plastid DNA sequences

2017 ◽  
Vol 24 (2) ◽  
pp. 155-164 ◽  
Author(s):  
Dhafer Ahmed Alzahrani ◽  
Enas Jameel Albokhari
Keyword(s):  
Phylogenetic Analysis ◽  
Molecular Phylogeny ◽  
Chloroplast Dna ◽  
Dna Sequences ◽  
Phylogenetic Relationships ◽  
Maximum Parsimony ◽  
Saudi Arabian ◽  
Plastid Dna ◽  
Plant Taxon ◽  
Bayesian Criteria

In order to provide a basis for better understanding of phylogenetic relationships of Saudi Arabian Tetraena Maxim. and Zygophyllum L., 44 specimens representing seven taxa, were reconstructed based on chloroplast DNA data of rbcL and trnL-F. The combined chloroplast (rbcL and trnL-F) contributed more phylogenetically informative characters than in individual regions. Phylogenetic analysis of the combined chloroplast (rbcL and trnL-F) and in individual regions based on both of Maximum Parsimony and Bayesian criteria showed that the Saudi Arabian species of Tetraena and Zygophyllum were monophyletic. Zygophyllum fabag L. was nested in one clade with Z. xanthoxylum (Bunge) Engl. (Asian species), and all taxa of Tetraena were distributed in other clades.Bangladesh J. Plant Taxon. 24(2): 155–164.

scholarly journals Eremiolirion, a new genus of southern African Tecophilaeaceae, and taxonomic notes on Cyanella alba

Bothalia ◽  
2005 ◽  
Vol 35 (2) ◽  
pp. 115-120
Author(s):  
J. C. Manning ◽  
F. Forest ◽  
C. A. Mannheimer
Keyword(s):  
Phylogenetic Analysis ◽  
Dna Sequences ◽  
New Genus ◽  
Flower Colour ◽  
Plastid Dna ◽  
The Other ◽  
Winter Rainfall ◽  
The Family ◽  
Distinct Genus ◽  
Rainfall Region

The generic affiliation of Cyanella amboensis Schinz has been uncertain since the species was excluded from the genus Cyanella L. in 1991. The species has two leaves, a divaricately branching inflorescence, ebracteolate pedicels, and acti- nomorphic flowers with monomorphic anthers. It is endemic to the western parts of central and northern Namibia. Other species of Cyanella have several leaves, racemose inflorescences, bracteolate pedicels, zygomorphic flowers with dimor­phic anthers, and are endemic or near-endemic to the winter rainfall region in southwestern South Africa and southern Namibia. These differences are consistent with the recognition of the species as a distinct genus within the family. Phylogenetic analysis of plastid DNA sequences indicates that C.  amboensis Schinz is sister to the other species of Cyanella, a relationship that also supports its independent generic status. The monotvpic genus Eremiolirion is according­ly erected to accommodate the species. Minor differences in flower colour and vegetative morphology in Cyanella alba L.f. are shown to correlate with the three disjunct groups of populations in which the species occurs, and these populations are recognized at the level of subspecies.

Phylogenetic Analysis of Trichaptum Based on Nuclear 18S, 5.8S and ITS Ribosomal DNA Sequences

Mycologia ◽  
1997 ◽  
Vol 89 (5) ◽  
pp. 727 ◽  
Author(s):  
Kwan S. Ko ◽  
Soon G. Hong ◽  
Hack S. Jung
Keyword(s):  
Phylogenetic Analysis ◽  
Ribosomal Dna ◽  
Dna Sequences

scholarly journals The life-cycle of the avian haemosporidian parasite Haemoproteus majoris, with emphasis on the exoerythrocytic and sporogonic development

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Mikas Ilgūnas ◽  
Carolina Romeiro Fernandes Chagas ◽  
Dovilė Bukauskaitė ◽  
Rasa Bernotienė ◽  
Tatjana Iezhova ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Life Cycle ◽  
Dna Sequences ◽  
Parus Major ◽  
Life Cycles ◽  
Internal Organs ◽  
Haemosporidian Parasite ◽  
Biting Midges ◽  
Vector Identity ◽  
Bayesian Phylogeny

Abstract Background Haemoproteus parasites (Haemosporida, Haemoproteidae) are cosmopolitan in birds and recent molecular studies indicate enormous genetic diversity of these pathogens, which cause diseases in non-adapted avian hosts. However, life-cycles remain unknown for the majority of Haemoproteus species. Information on their exoerythrocytic development is particularly fragmental and controversial. This study aimed to gain new knowledge on life-cycle of the widespread blood parasite Haemoproteus majoris. Methods Turdus pilaris and Parus major naturally infected with lineages hPHYBOR04 and hPARUS1 of H. majoris, respectively, were wild-caught and the parasites were identified using microscopic examination of gametocytes and PCR-based testing. Bayesian phylogeny was used to determine relationships between H. majoris lineages. Exoerythrocytic stages (megalomeronts) were reported using histological examination and laser microdissection was applied to isolate single megalomeronts for genetic analysis. Culicoides impunctatus biting midges were experimentally exposed in order to follow sporogonic development of the lineage hPHYBOR04. Results Gametocytes of the lineage hPHYBOR04 are indistinguishable from those of the widespread lineage hPARUS1 of H. majoris, indicating that both of these lineages belong to the H. majoris group. Phylogenetic analysis supported this conclusion. Sporogony of the lineage hPHYBOR04 was completed in C. impunctatus biting midges. Morphologically similar megalomeronts were reported in internal organs of both avian hosts. These were big roundish bodies (up to 360 μm in diameter) surrounded by a thick capsule-like wall and containing irregularly shaped cytomeres, in which numerous merozoites developed. DNA sequences obtained from single isolated megalomeronts confirmed the identification of H. majoris. Conclusions Phylogenetic analysis identified a group of closely related H. majoris lineages, two of which are characterized not only by morphologically identical blood stages, but also complete sporogonic development in C. impunctatus and development of morphologically similar megalomeronts. It is probable that other lineages belonging to the same group would bear the same characters and phylogenies based on partial cytb gene could be used to predict life-cycle features in avian haemoproteids including vector identity and patterns of exoerythrocytic merogony. This study reports morphologically unique megalomeronts in naturally infected birds and calls for research on exoerythrocytic development of haemoproteids to better understand pathologies caused in avian hosts.

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