Phylogenetic Relationships in Helianthus (Asteraceae) Based on Nuclear Ribosomal DNA Internal Transcribed Spacer Region Sequence Data

1998 ◽  
Vol 23 (2) ◽  
pp. 177 ◽  
Author(s):  
Edward E. Schilling ◽  
C. Randal Linder ◽  
Richard D. Noyes ◽  
Loren H. Rieseberg
Keyword(s):  
Ribosomal Dna ◽  
Phylogenetic Relationships ◽  
Internal Transcribed Spacer ◽  
Sequence Data ◽  
Nuclear Ribosomal Dna ◽  
Internal Transcribed Spacer Region ◽  
Region Sequence

Genetic polymorphism of Japanese cultivated Rheum species in the internal transcribed spacer region of nuclear ribosomal DNA

2019 ◽  
Vol 73 (3) ◽  
pp. 541-554
Author(s):  
Mai Asanuma ◽  
Shu Zhu ◽  
Naoki Okura ◽  
Shao-Qing Cai ◽  
Kayo Yoshimatsu ◽  
...  
Keyword(s):  
Genetic Polymorphism ◽  
Ribosomal Dna ◽  
Internal Transcribed Spacer ◽  
Nuclear Ribosomal Dna ◽  
Internal Transcribed Spacer Region

Phylogenetic analyses of Nematoctonus and Hohenbuehelia (Pleurotaceae)

2007 ◽  
Vol 85 (8) ◽  
pp. 762-773 ◽  
Author(s):  
Alexandra T.E. Koziak ◽  
Kei Chin Cheng ◽  
R. Greg Thorn
Keyword(s):  
Ribosomal Dna ◽  
Internal Transcribed Spacer ◽  
Phylogenetic Analyses ◽  
Large Subunit ◽  
Nuclear Ribosomal Dna ◽  
Monophyletic Clade ◽  
Parasitoid Species ◽  
Internal Transcribed Spacer Region ◽  
Species Limits ◽  
Additional Gene

Hohenbuehelia (Agaricales, Pleurotaceae) and Nematoctonus (Hyphomycetes) are the names for the sexual and asexual stages of a genus of nematode-destroying fungi (Basidiomycota). We obtained partial sequences of nuclear ribosomal DNA, including the internal transcribed spacer region and the 5′ end of the large subunit, of 37 isolates of Hohenbuehelia and Nematoctonus representing 13 of the 16 described species in Nematoctonus. Phylogenetic analyses support Hohenbuehelia–Nematoctonus as a monophyletic clade of the Pleurotaceae, within which the species were placed in five main subclades. Exclusively predatory species ( Nematoctonus brevisporus Thorn & G.L. Barron, Nematoctonus campylosporus Drechsler, Nematoctonus robustus F.R. Jones, and Nematoctonus sp. UAMH 5317) appear to be basal. In these species, adhesive knobs to capture prey are produced on their hyphae but not on their conidia. A single mycelial individual may feed on many nematodes. From these have arisen both exclusively parasitoid species ( Nematoctonus cylindrosporus Thorn & G.L. Barron, Nematoctonus leiosporus Drechsler, Nematoctonus leptosporus Drechsler, Nematoctonus pachysporus Drechsler, Nematoctonus tylosporus Drechsler), and species that we call intermediate predators ( Nematoctonus angustatus Thorn & G.L. Barron, Nematoctonus concurrens Drechsler, Nematoctonus geogenius Thorn & GL. Barron, Nematoctonus hamatus Thorn & G.L. Barron, and Nematoctonus subreniformis Thorn & G.L. Barron). Exclusively parasitoid species have conidia that germinate to form sticky knobs that attach to passing nematodes but lack adhesive knobs on the hyphae. Each mycelial individual feeds on only one nematode. Intermediate predators have adhesive knobs both on hyphae and on germinated conidia and can act in both predatory and parasitoid modes. Most morphospecies are resolved as monophyletic, but sequences of additional gene regions are required to clarify species limits within the N. angustatus – N. geogenius group.

Phylogeography based on the nuclear ribosomal DNA internal transcribed spacer region of nativeMiscanthus sinensis(Poaceae) populations in Japan

2014 ◽  
Vol 14 (4) ◽  
pp. 251-261 ◽  
Author(s):  
Hiroshi Hayakawa ◽  
Maiko Akasaka ◽  
Yoshiko Shimono ◽  
Shunji Kurokawa ◽  
Tomoko Nishida ◽  
...  
Keyword(s):  
Ribosomal Dna ◽  
Internal Transcribed Spacer ◽  
Nuclear Ribosomal Dna ◽  
Internal Transcribed Spacer Region

scholarly journals Phylogenetic Analysis of Section Sinomartagon in Genus Lilium Using Sequences of the Internal Transcribed Spacer Region in Nuclear Ribosomal DNA.

2001 ◽  
Vol 51 (1) ◽  
pp. 39-46 ◽  
Author(s):  
Tomotaro Nishikawa ◽  
Keiichi Okazaki ◽  
Katsuro Arakawa ◽  
Tsukasa Nagamine
Keyword(s):  
Phylogenetic Analysis ◽  
Ribosomal Dna ◽  
Internal Transcribed Spacer ◽  
Nuclear Ribosomal Dna ◽  
Internal Transcribed Spacer Region

A Molecular Phylogeny of Lilium in the Internal Transcribed Spacer Region of Nuclear Ribosomal DNA

1999 ◽  
Vol 49 (2) ◽  
pp. 238-249 ◽  
Author(s):  
Tomotaro Nishikawa ◽  
Keiichi Okazaki ◽  
Tae Uchino ◽  
Katsuro Arakawa ◽  
Tsukasa Nagamine
Keyword(s):  
Molecular Phylogeny ◽  
Ribosomal Dna ◽  
Internal Transcribed Spacer ◽  
Nuclear Ribosomal Dna ◽  
Internal Transcribed Spacer Region
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