FIGURE 2 in 20,000 species and five key markers: The status of molecular bryophyte phylogenetics

FIGURE 2. Frequency of the use of molecular markers in 382 publications on bryophyte molecular phylogenetics until the end of 2009. Column heights represent the number of publications in which sequences of the specific DNA regions (plastid: rpl16−ITS cp, nuclear: 18S−trnL nuc, mitochondrial: 16S mt−trnS mt) or fingerprinting data, respectively, were used. Gene names: rpl16 = 50S ribosomal subunit (SU) protein; rpoA = RNA polymerase α SU; psbT-N-H = photosystem (PS) II proteins; accD = acetyl coenzyme A carboxylase β SU; psaI = PS I SU; atpB = ATP synthase β SU; rbcL = ribulose 1,5 bisphosphate carboxylase; trnM / trnV / trnT / trnL / trnF = tRNAs methionine / valine / threonine / leucine / phenylalanine; rps4 = 30S ribosomal SU protein S4; psaA = PS I P700 apoprotein A1; psaB = PS I SU; psbD = PS II D2 protein; psbA = PS II D1 protein; trnH / trnK = tRNAs histidine / lysine; matK = maturase K; trnG = tRNA glycine; rpoC2 = RNA polymerase β'/β'' SU; 16S / 23S = rRNA genes; ITS cp = internal transcribed spacer (ITS) 2 / 3 / 4 of cpDNA; 18S / 26S = rRNA genes; ITS nr = ITS1 / 5.8S rRNA gene / ITS2 of nrDNA; adk = adenosine kinase; gapC (=gpd) = glyceraldehyd 3-phosphate dehydrogenase; LFY1/2 = introns in the Leafy-Flo gene (chromatin DNA binding protein, transcription factor); phy2 = phytochrome 2; rapdA / rapdB / rapdF = anonymous nuclear loci; rpb2 = RNA polymerase II SU; trnL nuc = nuclear trnL spacers; 16S mt = rRNA gene (mitochondrial); trnA / trnT / trnS = tRNAs (mitochondrial); nad1 / nad2 / nad4 / nad5 / nad7 = NADH:ubiquinone oxidoreductase SUs; coxIII = cytochrome c oxidase SU III; AFLP = amplified fragment length polymorphism; ISSR/microsat = inter simple sequence repeats / microsatellites; RAPD = random amplified polymorphic DNA; (PCR-)RFLP = (polymerase chain reaction-)restriction fragment length polymorphism.