厚苔属(天竺葵科)一新种的形态和分子诊断特征

IF 2 4区生物学 Q2 PLANT SCIENCES

Haseltonia Pub Date : 2020-02-26 DOI:10.2985/026.026.0103

J. R. Santiago, Luis E. de la Cruz-López, Maria L Kuzmina, Francisco Vergara-Silva

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引用次数: 2

摘要

摘要/ Abstract摘要:粘心厚植(Pachyphytum visidum)是一种新种。分析的标本来自墨西哥瓜纳华托的圣山Bárbara。新种的形态诊断特征有:茎叶粘;叶深绿色;所有器官上没有蜡;还有淡粉色的花。新种被置于该属薯蓣科，可能与短叶蓼和钩叶蓼相近。对墨西哥石竹科植物的matK和rbcL叶绿体区域以及ITS2核位点的DNA序列分析显示，除了上述形态特征状态外，还存在分子诊断位点，进一步支持了该植物的分类描述和未来的综合分类研究。

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Morphological and Molecular Diagnostic Characters Reveal a New Species of Pachyphytum (Crassulaceae)

Abstract: Pachyphytum viscidum (Crassulaceae: Saxifragales) is described as a new species to science. The specimens analyzed come from the Sierra de Santa Bárbara, Guanajuato, Mexico. Some morphological diagnostic characters for the new species are: sticky stems and leaves; dark green leaves; absence of wax on all their organs; and pale pink flowers. The new species is placed in the section Diotostemon of the genus, with possible proximity to P. brevifolium and P. hookeri. DNA sequence analysis from the matK and rbcL chloroplast regions, as well as ITS2 nuclear loci, revealed the presence of molecular diagnostic sites which, in addition to the aforementioned morphological character states, further support the taxonomic description as well as future integrative taxonomy studies in Mexican Crassulaceae.

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来源期刊

Haseltonia 生物-植物科学

CiteScore

3.00

自引率

6.70%

发文量

审稿时长

>12 weeks

期刊介绍： Haseltonia, Yearbook of the Cactus and Succulent Society of America, is published in full color and features peer-reviewed articles about all aspects of cacti, succulents and their environs. Topics include current research and conservation reports, new species descriptions and lengthy taxonomic revisions, historical and biographical notes, chemical and cytological studies, evolutionary biology and ethnobotanical reports, propagation and pest control methods, and pollinator studies. Serious students of the world''s succulent flora, botanists, taxonomists, researchers and horticulturalists will all find Haseltonia a valuable addition to their book collection.