Smilax weniae, a New Species of Smilacaceae from Limestone Areas Bordering Guizhou and Guangxi, China.

Smilax weniae, a New Species of Smilacaceae from Limestone Areas Bordering Guizhou and Guangxi, China.
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黔桂交界石灰岩地区菝葜科一新种--文尼菝葜。

DOI:
10.3390/plants11081032
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发表时间:
2022-04-11
期刊:
Plants (Basel, Switzerland)
影响因子:
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其他
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本文描述并绘图介绍了中国西南部发现的菝葜科菝葜属一新种——文氏菝葜。该新种叶片呈盾状,此前这一特征仅见于藜芦叶菝葜。然而,文氏菝葜与藜芦叶菝葜的区别在于,其叶片为宽卵形,总花梗更长,且花具两性异形。进一步的系统发育分析表明,基于叶绿体DNA(ptDNA)和核核糖体内部转录间隔区(nrITS)序列,该新种在旧世界菝葜属的一个亚分支中占据独特位置。综合详细的形态比较和分子证据,我们确认文氏菝葜是一个尚未被描述的新物种。此外,本文还报道了文氏菝葜的叶绿体基因组特征。
A new species, Smilax weniae (Smilacaceae), from Southwest China, is described and illustrated. The new species bears peltate leaves, which was previously a unique feature of S. luei. However, it differs from the latter by having a broad ovate leaf blade, longer peduncle, and sexual dimorphic flowers. Further phylogenetic analyses revealed that the new species were placed in a unique position in a subclade of Old World Smilax based on ptDNA and nrITS sequences. Combining detailed morphological comparisons and molecular evidence, we validated that S. weniae is an undescribed new species. Moreover, the plastome characteristics of S. weniae are reported.
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期刊: PHYTOTAXA
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