新植物属×Cylindronia，代表了首次报道的桂花属与圆柱属(仙人掌科)的杂交

IF 2 4区生物学 Q2 PLANT SCIENCES

Haseltonia Pub Date : 2023-03-08 DOI:10.2985/026.029.0102

M. Baker, L. Majure, Michelle A. Cloud-Hughes, J. Rebman

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引用次数: 0

摘要

摘要:下加利福尼亚南部罕见的特有仙人掌Grusonia robertsii最初被假设为G. invicta和圆柱形仙人掌alcahes subsp的属间杂交品种。但由于其整体上更接近于G. invicta，除了果实外，被描述为Grusonia。基于质体和nrDNA序列对robertsii的形态和系统发育位置进行了更全面的分析，结果表明Rebman的假设是正确的，该分类群代表了有文献记载的第一个圆柱形纲和Grusonia之间的属间杂交，其中G. invicta是母本，C. alcahes是亚种。Alcahes作为父亲的贡献者。我们在这里描述了一个新的植物属×Cylindronia，并为植物种×Cylindronia robertsii comb提供了一个新的组合。11月。

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×Cylindronia, a New Nothogenus Representing the First Reported Hybrid Between Grusonia and Cylindropuntia (Cactaceae)

Abstract: The rare Baja California Sur endemic cactus Grusonia robertsii was originally hypothesized to be an intergeneric hybrid between G. invicta and Cylindropuntia alcahes subsp. alcahes but was described as a Grusonia due to its overall closer resemblance to G. invicta, except in the fruit. A more comprehensive analysis of the morphology and phylogenetic placement of G. robertsii based on plastid and nrDNA sequences has revealed that Rebman's original hypothesis was correct, and this taxon represents the first documented intergeneric hybrid between Cylindropuntia and Grusonia, with G. invicta as the maternal parent and C. alcahes subsp. alcahes as the paternal contributor. We here describe a new nothogenus, ×Cylindronia, and provide a new combination for the nothospecies ×Cylindronia robertsii comb. nov.

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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.