Phylogenetic position ofKontumia(Polypodiaceae) inferred from four chloroplast DNA regions

2012 ◽  
pp. n/a-n/a
Author(s):  
Changkyun Kim ◽  
Hong-Guang Zha ◽  
Tao Deng ◽  
Hang Sun ◽  
Su-Gong Wu
Keyword(s):  
Chloroplast Dna ◽  
Phylogenetic Position ◽  
Chloroplast Dna Regions

Phylogenetic position ofKontumia(Polypodiaceae) inferred from four chloroplast DNA regions

2012 ◽  
Vol 51 (2) ◽  
pp. 154-163 ◽  
Author(s):  
Changkyun KIM ◽  
Hong-Guang ZHA ◽  
Tao DENG ◽  
Hang SUN ◽  
Su-Gong WU
Keyword(s):  
Chloroplast Dna ◽  
Phylogenetic Position ◽  
Chloroplast Dna Regions

scholarly journals Molecular variation in chloroplast DNA regions in ancestral species of wheat.

Genetics ◽  
1994 ◽  
Vol 137 (3) ◽  
pp. 883-889 ◽  
Author(s):  
N T Miyashita ◽  
N Mori ◽  
K Tsunewaki
Keyword(s):  
Chloroplast Dna ◽  
Restriction Enzymes ◽  
Triticum Dicoccoides ◽  
The Other ◽  
Major Type ◽  
Aegilops Speltoides ◽  
Triticum Timopheevi ◽  
Restriction Sites ◽  
D Values ◽  
Chloroplast Dna Regions

Abstract Restriction map variation in two 5-6-kb chloroplast DNA regions of five diploid Aegilops species in the section Sitopsis and two wild tetraploid wheats, Triticum dicoccoides and Triticum araraticum, was investigated with a battery of four-cutter restriction enzymes. A single accession each of Triticum durum, Triticum timopheevi and Triticum aestivum was included as a reference. More than 250 restriction sites were scored, of which only seven sites were found polymorphic in Aegilops speltoides. No restriction site polymorphisms were detected in all of the other diploid and tetraploid species. In addition, six insertion/deletion polymorphisms were detected, but they were mostly unique or species-specific. Estimated nucleotide diversity was 0.0006 for A. speltoides, and 0.0000 for all the other investigated species. In A. speltoides, none of Tajima's D values was significant, indicating no clear deviation from the neutrality of molecular polymorphisms. Significant non-random association was detected for three combinations out of 10 possible pairs between polymorphic restriction sites in A. speltoides. Phylogenetic relationship among all the plastotypes (plastid genotype) suggested the diphyletic origin of T. dicoccoides and T. araraticum. A plastotype of one A. speltoides accession was identical to the major type of T. araraticum (T. timopheevi inclusively). Three of the plastotypes found in the Sitopsis species are very similar, but not identical, to that of T. dicoccoides, T. durum and T. aestivum.

scholarly journals A phylogenetic analysis and new delimitation of Crepidiastrum (Asteraceae, tribe Cichorieae)

Phytotaxa ◽  
2014 ◽  
Vol 159 (4) ◽  
pp. 241 ◽  
Author(s):  
Yu-lan Peng ◽  
Yu Zhang ◽  
Xin-fen Gao ◽  
Lin-jing Tong ◽  
Liang Li ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Maximum Likelihood ◽  
Chloroplast Dna ◽  
Maximum Parsimony ◽  
Phylogenetic Analyses ◽  
Systematic Position ◽  
Likelihood Inference ◽  
Nuclear Its ◽  
Chloroplast Dna Regions

The systematic position of Paraixeris humifusa (Asteraceae) is hard to define, because the circumscription of Paraixeris, Youngia and Crepidiastrum, three closely related genera in subtribe Crepidinae (Cichorieae), is not clear. This paper reports on the relationships between 30 species in subtribe Crepidinae, based on an analysis of nucleotides from one nuclear (ITS) and three chloroplast DNA regions ( trnL-F, rps16 and atpB-rbcL). The phylogenetic analyses used maximum parsimony with maximum likelihood inference. The monophyly of Crepidiastrum in the most recent generic classification of Shih & Kilian (2011) is explored. The results show that 12 species in Crepidiastrum constitute a monophyletic group, and that Paraixeris humifusa should be treated as Youngia humifusa.

scholarly journals Contribution to Globularia phylogeny based on nuclear ribosomal spacer and two chloroplast DNA regions

2017 ◽  
Vol 118 (4) ◽  
Author(s):  
Kroata Hazler Pilepić ◽  
Maja Friščić ◽  
Ahmet Duran ◽  
Semir Maslo ◽  
Rade Garić ◽  
...  
Keyword(s):  
Chloroplast Dna ◽  
Maximum Parsimony ◽  
Nuclear Dna ◽  
Sequence Data ◽  
Leaf Tissue ◽  
Molecular Data ◽  
Rbcl Gene ◽  
Nuclear Its ◽  
Cellular Dna ◽  
Chloroplast Dna Regions

Background and Purpose: Molecular approach has a major impact on phylogenetic studies of plants, considering that it gives useful information about evolutionary events and relations on all taxonomic levels. The sequence data of the nuclear ITS and of two chloroplast regions, trnL-trnF spacer and rbcL gene, obtained from thirteen Globularia L. taxa, including five Anatolian endemics, representing six sections altogether, were analyzed in order to determine the relations between the European and the Anatolian species and get a better insight into the phylogeny of several closely related Globularia taxa.  Materials and Methods: Total cellular DNA was extracted from fresh or frozen leaf tissue of thirteen Globularia samples. The ITS regions of nuclear DNA and two chloroplast DNA regions were amplified and sequenced. Obtained nuclear and combined plastid data matrices were subjected to Maximum Parsimony analyses. Results and Conclusions: Molecular data that were obtained in this study indicate the existence of separate centers of diversification for the European and the Anatolian Globularia. The results provide support for relationships among the studied Anatolian endemic species and indications for a redefinition of affinities of some of the European species. The results presented herein are discussed along with available morphological, karyological, phytogeographical and molecular data. Keywords: Globularia, ITS, trnL-trnF, rbcL, Maximum Parsimony, Quaternary

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