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. 2022 Aug 19:204:109-119.
doi: 10.3897/phytokeys.204.86857. eCollection 2022.

 Pileadanxiaensis (Urticaceae), a new species in the Danxia landform from Guangdong, China including a description of the entire chloroplast genome

Long-Fei Fu  1 , Chi Xiong  1 , Alexandre K Monro  2 , Qiang Fan  3 , Zai-Xiong Chen  4 , Fang Wen  1 , Zi-Bing Xin  1 , Yi-Gang Wei  1 , Wen-Bo Liao  3
Affiliations

 Pileadanxiaensis (Urticaceae), a new species in the Danxia landform from Guangdong, China including a description of the entire chloroplast genome

Long-Fei Fu et al. PhytoKeys. .

Abstract

Pileadanxiaensis L.F.Fu, A.K.Monro & Y.G.Wei, a new species of Urticaceae from Danxia landform, Guangdong, China, is described and photographed. Phylogenetic analyses based on three DNA regions (ITS, trnL-F and rbcL) suggest that the new species belongs to P.sect.Pilea. Within the section, the new species is morphologically most similar to P.sinocrassifolia and P.peploides. Plastid genome and ribosomal DNA (rDNA) sequences of the new species are assembled and annotated. The plastid genome is 151,857 bp in length and comprises two inverted repeats (IRs) of 25,307 bp separated by a large single-copy of 82,836 bp and a small single-copy of 18,407 bp. A total of 113 functional genes are recovered, comprising 79 protein-coding genes, 30 tRNA genes, and four rRNA genes. A global conservation assessment suggests that P.danxiaensis should be classified as of Least Concern (LC).

Keywords: Danxia landscape; new taxon; plastome; taxonomy.

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Figures

Figure 1.
Figure 1.
Plastid genome map of Pileadanxiaensis. The thick lines on the outer complete circle identify the inverted repeat regions (IRa and IRb). The innermost track of the plastome shows the GC content. Genes on the outside and inside of the map are transcribed in clockwise and counter directions, respectively.
Figure 2.
Figure 2.
Phylogenetic tree of Pilea s.l. generated from Bayesian Inference (BI) of combined dataset (ITS, trnL-trnF and rbcL). Numbers below the branches indicate the posterior probability (≥0.5) of BI and bootstrap values (≥50%) of the ML analyses. ‘*’ indicates supports of 1.0/100. The bold (Pileadanxiaensis) indicates the new species.
Figure 3.
Figure 3.
Plate of PileadanxiaensisA habitat B habit C leaves and inflorescence D stipules E staminate inflorescence F pistillate inflorescence G staminate flower H pistillate flower I achene with pistillate sepals J LM of achene KSEM of achene.
See this image and copyright information in PMC

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