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Terniopsisyongtaiensis (Podostemaceae), a new species from South East China based on morphological and genomic data

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Abstract The new species Terniopsisyongtaiensis X.X. Su, Miao Zhang & Bing-Hua Chen, from Fujian Province, China, is described and illustrated. It is similar to T.heterostaminata from Thailand, but differs in… Click to show full abstract

Abstract The new species Terniopsisyongtaiensis X.X. Su, Miao Zhang & Bing-Hua Chen, from Fujian Province, China, is described and illustrated. It is similar to T.heterostaminata from Thailand, but differs in its two fertile stamens, fewer but longer vegetative ramuli, fewer but shorter flowering ramuli, shorter pedicels, capsule-stalk and stamens. The complete chroloplast genome of the new species is 129,074 bp long and has a typical quadripartite structure, including two inverted repeat regions (IRs) of 18,504 bp in length, separated by a large single-copy (LSC) and a small single-copy (SSC) regions of 79,000 bp and 13,066 bp, respectively. The ycf1 and ycf2 genes were lost compared to most higher plants, leading to a substantial reduction in the IR. The phylogenetic analysis using both matK and nrITS revealed that T.yongtaiensis is sister to T.heterostaminata with moderate support, and formed a clade with other Terniopsis species, suggesting that the new species belongs to Tristichoideae.

Keywords: south east; podostemaceae new; species south; new species; east china; terniopsisyongtaiensis podostemaceae

Journal Title: PhytoKeys
Year Published: 2022

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