Results 171 to 180 of about 18,887 (206)

Complete chloroplast genome of two Brachycorythis (Orchidaceae) species from China: comparative analysis and phylogenetic implications. [PDF]

BMC Genomics
Ma D, Tao K, Xia Y, Luo Y, Li L.
europepmc   +1 more source

Phylogeny of Valerianaceae based on matK and ITS markers, with reference to matK individual polymorphism [PDF]

Annals of Botany, 2004
The monophyly of Valerianaceae and the precise delimitation of the family are not totally resolved. Our knowledge on the phylogeny of the group is only partial: on a morphological basis, some contradicting taxonomic proposals have been published, which demonstrates the difficulties in establishing a natural classification of the family and especially ...
Oriane Hidalgo, Teresa Garnatje, Alfonso Susanna   +2 more
exaly   +4 more sources

Ectopic Transplastomic Expression of a Synthetic MatK Gene Leads to Cotyledon-Specific Leaf Variegation

Frontiers in Plant Science, 2018
Chloroplasts (and other plastids) harbor their own genetic material, with a bacterial-like gene-expression systems. Chloroplast RNA metabolism is complex and is predominantly mediated by nuclear-encoded RNA-binding proteins.
Uwe Ohler, Gert Weber, Christian Schmitz-Linneweber   +2 more
exaly   +3 more sources

Molecular phylogenetics of Phyllanthaceae: evidence from plastid MATK and nuclear PHYC sequences [PDF]

American Journal of Botany, 2005
Plastid matK and a fragment of the low‐copy nuclear gene PHYC were sequenced for 30 genera of Phyllanthaceae to evaluate tribal and generic delimitation. Resolution and bootstrap percentages obtained with matK are higher than that of PHYC, but both regions show nearly identical phylogenetic patterns.
Charles C Davis, Mark W Chase
exaly   +5 more sources

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Expression of matK: functional and evolutionary implications

American Journal of Botany, 2007
Strong phylogenetic signal from matK has rendered it an invaluable gene in plant systematic and evolutionary studies at various evolutionary depths. Further, matK is proposed as the only chloroplast‐encoded group II intron maturase, thus implicating MATK in chloroplast posttranscriptional processing.
Michelle M, Barthet, Khidir W, Hilu
openaire   +2 more sources

Molecular evolution and positive Darwinian selection of the chloroplast maturase matK

Journal of Plant Research, 2009
It is not clear whether matK evolves under Darwinian selection. In this study, 70 plant groups, representing 2,279 species at various evolutionary levels, were used to illustrate the molecular adaptation and evolutionary dynamics of gene divergence in matKs. Selective influences were investigated using standard dN/dS ratio methods.
Da-Cheng Hao
exaly   +3 more sources

Angiosperm phylogeny based on matK sequence information.

American journal of botany, 2012
Plastid matK gene sequences for 374 genera representing all angiosperm orders and 12 genera of gymnosperms were analyzed using parsimony (MP) and Bayesian inference (BI) approaches. Traditionally, slowly evolving genomic regions have been preferred for deep-level phylogenetic inference in angiosperms.
Khidir W, Hilu, Thomas, Borsch, Kai, Müller, Douglas E, Soltis, Pamela S, Soltis, Vincent, Savolainen, Mark W, Chase, Martyn P, Powell, Lawrence A, Alice, Rodger, Evans, Hervé, Sauquet, Christoph, Neinhuis, Tracey A B, Slotta, Jens G, Rohwer, Christopher S, Campbell, Lars W, Chatrou   +15 more
openaire   +2 more sources

Splicing and intron-internal RNA editing of trnK-matK transcripts in barley plastids: support for MatK as an essential splice factor

Journal of Molecular Biology, 1997
Group II introns frequently require assistance by specific factors, maturases, for folding and effective splicing in vivo. The only putative maturase of higher plant chloroplasts is encoded by matK, located in the intron of trnK. We show that in barley matK transcripts are modified at a first codon base by C-to-U RNA editing.
Vogel, Jörg, Hübschmann, Thomas, Börner, Thomas, Hess, Wolfgang   +3 more
openaire   +3 more sources

Physicochemical evolution and positive selection of the gymnosperm matK proteins

Journal of Genetics, 2010
It is not clear whether matK evolves under Darwinian selection. In this study, the gymnosperm Taxaceae, Cephalotaxaceae and Pinaceae were used to illustrate the physicochemical evolution, molecular adaptation and evolutionary dynamics of gene divergence in matKs. matK sequences were amplified from 27 Taxaceae and 12 Cephalotaxaceae species.
Da Cheng, Hao, Jun, Mu, Shi Lin, Chen, Pei Gen, Xiao   +3 more
openaire   +2 more sources