Origin and phylogeny of Guinea yams as revealed by RFLP analysis of chloroplast DNA and nuclear ribosomal DNA

1992 ◽  
Vol 83-83 (6-7) ◽  
pp. 743-751 ◽  
Author(s):  
R. Terauchi ◽  
V. A. Chikaleke ◽  
G. Thottappilly ◽  
S. K. Hahn
Keyword(s):  
Chloroplast Dna ◽  
Ribosomal Dna ◽  
Rflp Analysis ◽  
Nuclear Ribosomal Dna ◽  
Guinea Yams

scholarly journals The comparison between nuclear ribosomal DNA and chloroplast DNA in molecular systematic study of four sections of genus Dendrobium sw. (orchidaceae)

2016 ◽  
Vol 5 (03) ◽  
pp. 4944 ◽  
Author(s):  
Maryam Moudi* ◽  
Rusea Go
Keyword(s):  
Chloroplast Dna ◽  
Ribosomal Dna ◽  
Morphological Characters ◽  
Molecular Data ◽  
Nuclear Ribosomal Dna ◽  
Phylogenetic Study ◽  
Data Sets ◽  
Molecular Systematic ◽  
Resolution Level ◽  
Reliable Marker

Phylogenetic study of the four sections (Aporum, Crumenata, Strongyle, and Bolbidium) of genus Dendrobium (family Orchidaceae) was conducted using molecular data. Classifications based on morphological characters have not being able to clearly divide these four sections neither do they supported their monophyly origin. Therefore, deeper and detailed analysis especially using molecular data is required to ascertain their status. Molecular evidences were used to clarify their relations either to lump them into one section or reduce them into two. The study has been carried out for the 34 species of Dendrobium using Maximum Parsimony (MP). Three nucleotide sequences data sets from two distinct genomes chloroplast DNA genes (rbcL and matK) and nuclear ribosomal DNA (ITS) were used to construct cladograms. The results that obtained from the Internal Transcribed Spacer (ITS) gene showed that the nuclear genes are reliable marker for the phylogenetic study of Dendrobium compared to chloroplast DNA with low resolution level among sections. 

THE PHYLOGENY OF TRIBE ZINGIBEREAE (ZINGIBERACEAE) BASED ON ITS (nrDNA) AND trnL–F (cpDNA) SEQUENCES

2003 ◽  
Vol 60 (3) ◽  
pp. 483-507 ◽  
Author(s):  
C. NGAMRIABSAKUL ◽  
M. F. NEWMAN ◽  
Q. C. B. CRONK
Keyword(s):  
Phylogenetic Analysis ◽  
Chloroplast Dna ◽  
Ribosomal Dna ◽  
Nuclear Ribosomal Dna ◽  
Its Nrdna ◽  
First Time

A phylogenetic analysis of the tribe Zingibereae (Zingiberaceae) was performed using nuclear ribosomal DNA (ITS1, 5.8S and ITS2) and chloroplast DNA (trnL (UAA) 5′ exon to trnF (GAA)). The tribe is monophyletic with two major clades, the Curcuma clade and the Hedychium clade. Paracautleya, sampled for the first time, comes out as predicted while Caulokaempferia comes out in a different position from that found in another recent study. The genera Boesenbergia and Curcuma are apparently not monophyletic.

The Phylogeny of Rosoideae (Rosaceae) Based on Sequences of the Internal Transcribed Spacers (ITS) of Nuclear Ribosomal DNA and the trnL/F Region of Chloroplast DNA

2003 ◽  
Vol 164 (2) ◽  
pp. 197-211 ◽  
Author(s):  
Torsten Eriksson ◽  
Malin S. Hibbs ◽  
Anne D. Yoder ◽  
Charles F. Delwiche ◽  
Michael J. Donoghue
Keyword(s):  
Chloroplast Dna ◽  
Ribosomal Dna ◽  
Internal Transcribed Spacers ◽  
Nuclear Ribosomal Dna ◽  
F Region

Molecular biogeography and evolution of the Microthlaspi perfoliatum s.l. polyploid complex (Brassicaceae): chloroplast DNA and nuclear ribosomal DNA restriction site variation

1998 ◽  
Vol 76 (3) ◽  
pp. 382-396 ◽  
Author(s):  
Marcus Koch ◽  
Klaus Mummenhoff ◽  
Herbert Hurka
Keyword(s):  
Molecular Phylogeny ◽  
Chloroplast Dna ◽  
Ribosomal Dna ◽  
Species Complex ◽  
Restriction Site ◽  
Natural Populations ◽  
Nuclear Ribosomal Dna ◽  
Polyploid Complex ◽  
Northern Iran ◽  
Ploidy Levels

The genusThlaspi L. s.l. comprises numerous segregate lineages, which have been recognized as single genera. One of these, Microthlaspi, represents one such segregate. It consists of morphologically similar annual species. The species have different ploidy levels (2x, 4x, 6x) and are usually summarized under the designation Thlaspi perfoliatum agg. The assumed ancestral diploid members of the species complex, Microthlaspi granatense (Boiss. & Reut.) F.K. Meyer, Microthlaspi umbellatum (Steven ex DC.) F.K. Meyer, and Microthlaspi natolicum (Boiss.) F.K. Meyer, are restricted to northwestern Africa, southeastern Spain and Turkey, northern Iran, and Lebanon. Microthlaspi perfoliatum (L.) F.K. Meyer is widely distributed all over Europe and shows three ploidy levels. Diploid M. perfoliatum is restricted to Middle Europe, whereas tetraploid and hexaploid M. perfoliatum are distributed all over Europe. Individual plants from 125 natural populations throughout the geographic range were analysed using chloroplast DNA (cpDNA) and nuclear ribosomal DNA (nrDNA) restriction site analysis. Within Microthlaspi, 31 cpDNA restriction site mutations, six nrDNA restriction site variations, and two length mutations in the IGS region of the nrDNA were found, and a molecular phylogeny of the species complex has been derived. Polymorphisms in molecular data partitioned cytotypes of M. perfoliatum. The geographical distribution patterns apparently reflect ancient speciation processes and postglacial vegetation history.Key words: chloroplast DNA, nuclear ribosomal DNA, Microthlaspi perfoliatum polyploid complex, molecular phylogeny, biogeography.

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