Fissidens eremicus (Fissidentaceae), a new pseudocryptic African–European species with dimorphic stems

IF 1.2 3区 生物学 Q3 PLANT SCIENCES
J. Guerra, J. A. Jiménez, Miguel Ángel Martínez, M. Cano
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引用次数: 4

Abstract

ABSTRACT Introduction Within Fissidens subgenus Fissidens, several species are distinguished in Europe. Some of them are easily identifiable by their morphological characters, and others by a combination of these characters and their sexual reproduction structures. The discovery in the south of the Iberian Peninsula of collections similar to F. viridulus (Sw.) Wahlenb. but with dimorphic fronds (male and female plants) like those of F. sublimbatus Grout suggests that an undescribed taxon exists in this region. Methods Nuclear ITS sequences of four samples of this hypothetical new species from southern Spain and 28 specimens of other species of the subgenera Fissidens and Pachyfissidens were studied. Relationships between specimens were explored with maximum likelihood and Bayesian inference analysis. A morphological study comparing the material to F. sublimbatus was also made. Key results and conclusions Molecular data showed high support for the recognition of a new species that also presents some morphological differences from Fissidens sublimbatus. Consequently, F. eremicus J.Guerra & J.A.Jiménez has been here described as a new species that can be considered as pseudocryptic and is readily confused with F. sublimbatus. This new taxon is known from the Canary Islands, North Africa and south-southeast Spain, colonising loamy-calcareous soils in ravines of places that are generally neither arid nor subject to much rain.
eremicus Fissidens(Fissidentaceae),一种新的假隐色非洲-欧洲物种,具有二形茎
摘要引言在裂边亚属裂边亚目中,有几个物种在欧洲很有特色。它们中的一些很容易通过形态特征来识别,而另一些则通过这些特征及其有性生殖结构的组合来识别。在伊比利亚半岛南部发现了与F.viridulus(Sw.)Wahlenb相似的藏品。但具有二形态的叶子(雄性和雌性植物),如升华花F.Grout的叶子,这表明该地区存在一个未描述的分类单元。方法对来自西班牙南部的4个这一假设新种的标本和其他28个裂亚属和厚裂亚属的标本的核ITS序列进行了研究。采用最大似然和贝叶斯推理分析方法探讨了样本之间的关系。还对该材料进行了形态学研究,将其与升麻进行了比较。关键结果和结论分子数据高度支持对一个新物种的识别,该物种也与升华裂边藻存在一些形态差异。因此,F.eremicus J.Guerra和J.A.Jiménez在这里被描述为一个可以被认为是伪密码的新物种,并且很容易与F.sublimibatus混淆。这个新的分类单元分布在加那利群岛、北非和西班牙东南部南部,定居在通常既不干旱也不多雨的峡谷中的泥质钙质土壤中。
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来源期刊
Journal of Bryology
Journal of Bryology 生物-植物科学
CiteScore
4.50
自引率
31.60%
发文量
20
审稿时长
3 months
期刊介绍: Journal of Bryology exists to promote the scientific study of bryophytes (mosses, peat-mosses, liverworts and hornworts) and to foster understanding of the wider aspects of bryology. Journal of Bryology is an international botanical periodical which publishes original research papers in cell biology, anatomy, development, genetics, physiology, chemistry, ecology, paleobotany, evolution, taxonomy, molecular systematics, applied biology, conservation, biomonitoring and biogeography of bryophytes, and also significant new check-lists and descriptive floras of poorly known regions and studies on the role of bryophytes in human affairs, and the lives of notable bryologists.
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