Molecular phylogeny of Japanese Potamogeton species in light of noncoding chloroplast sequences

Iida, Satoko; Kosuge, Keiko; Kadono, Yasurō

doi:10.1016/j.aquabot.2004.08.005

Cited by 31 publications

(44 citation statements)

References 16 publications

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“…Recent molecular studies (Kaplan and Štěpánek 2003;Iida et al 2004) indicate that species delimitation based on these characters is perfectly correlated with molecular markers. The shape of the stipules is also associated with macroevolutionary lineages that define groups of species (Hettiarachchi and Triest 1991;Kaplan and Fehrer, unpubl.…”

Section: Examination and Interpretation Of Key Charactersmentioning

confidence: 98%

“…Although this group is indeed well defined morphologically and karyologically, and is a compact monophyletic group, arguments were also given for maintaining it at the level of subgenus (Wiegleb and Kaplan 1998). Recent molecular studies (Les et al 1997;Chen et al 2004;Iida et al 2004;Lindqvist et al 2006;Wang et al 2007) indicate that Potamogeton in the broad sense represents two separate lineages, corresponding to Potamogeton s. str. and Stuckenia.…”

Section: Introductionmentioning

confidence: 96%

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A Taxonomic Revision of Stuckenia (Potamogetonaceae) in Asia, with Notes on the Diversity and Variation of the Genus on a Worldwide Scale

Kaplan

2008

Folia Geobot

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A taxonomic revision of the Asian species of Stuckenia, a segregate of Potamogeton, is presented. Six species are recognized and their morphological descriptions, nomenclature and typification of relevant names are given. Distributions of all species are described and lists of representative specimens and distribution maps provided. Lectotypes are designated for 24 names and nomenclatural types are listed for 22 additional names. The correct name for the species known as Potamogeton recurvatus is Stuckenia pamirica (Baagöe) Z. Kaplan, comb. nova. Morphological variation at different levels within the genus is described and compared with different concepts of its taxonomic interpretation. Instructions on examination of key characters are given, together with a key to species. Colour photographs illustrate the general appearance of species as well as many identification details. The pattern of variation and taxonomic validity of the Siberian morphotypes S. subretusa and S. austrosibirica are analyzed. The plasticity of diagnostic characters of P. juncifolius and of P. helveticus from the European Alps, the infraspecific classification of S. filiformis in North America, and the taxonomic status of S. punensis described from Peru are also discussed.

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Section: Examination and Interpretation Of Key Charactersmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 96%

A Taxonomic Revision of Stuckenia (Potamogetonaceae) in Asia, with Notes on the Diversity and Variation of the Genus on a Worldwide Scale

Kaplan

2008

Folia Geobot

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“…that belong to a common submerged perennial herb [17]. These plants occur in rivers, lakes, and marshes around the world [18][19]. P pectinatus is characterised by slender round shoots up to 3 m long with narrow linear leaves, whereas P. crispus has shorter heavily branched stems up to 2 m [17].…”

Section: Introductionmentioning

confidence: 99%

Two Simultaneously Occurring Potamogeton Species: Similarities and Differences in Seasonal Changes of Biomechanical Properties

Łoboda¹,

Bialik²,

Karpiński³

et al. 2018

Pol. J. Environ. Stud.

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Two common Potamogeton species, Potamogeton pectinatus L. and Potamogeton crispus L., were collected in 2016 and 2017 from a lowland, sandy bed in the Wilga River in Poland to investigate the ability of the plants to adapt to changing hydrological conditions. Measurements included biomechanical properties as well as the morphological characteristics of their stems. Specifically, experiments included three-point bending and tension tests as well as stem diameter and cross-sectional morphology at various periods in the plants' life cycles. Detailed information about the seasonal changes in biomechanical traits and the similarities between the two investigated plants are presented. The data show significant differences in the three-point bending and tension parameters. The flexural rigidity proved to be the most sensitive parameter to changes in hydrological conditions during the season. The maximum forces in the three-point bending tests needed to complete the fracture of P. crispus were much higher, reaching values up to 0.097 N, than those for P. pectinatus (0.035 N), due to P. crispus having thicker shoots, which resulted in greater resistance to elastic deformity. Moreover, the modulus of elasticity values shows that P. pectinatus is much more prone to return to its original shape after the removal of the acting forces. For instance, the maximum Young's modulus for P. pectinatus was 116.23 MPa, whereas for P. crispus, the highest value was four times lower (26.60 MPa). The present study supplements an aquatic plant biomechanics database that has been created in recent years.

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“…The genus Potamogeton L. (monocotyledonous pondweeds; family: Potamogetonaceae) is the largest exclusively aquatic genus that includes heterophyllous and homophyllous species (Bradshaw 1965; Iida et al 2004, 2009; Les and Sheridan 1990). Our recent study investigated the differences in phenotypic plasticity and natural habitats among sister Potamogeton species; heterophyllous P .…”

Section: Introductionmentioning

confidence: 99%

Loss of heterophylly in aquatic plants: not ABA-mediated stress but exogenous ABA treatment induces stomatal leaves in Potamogeton perfoliatus

et al. 2016

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Heterophyllous aquatic plants produce aerial (i.e., floating and terrestrial) and submerged leaves—the latter lack stomata—while homophyllous plants contain only submerged leaves, and cannot survive on land. To identify whether differences in morphogenetic potential and/or physiological stress responses are responsible for variation in phenotypic plasticity between two plants types, responses to abscisic acid (ABA) and salinity stress were compared between the closely related, but ecologically diverse pondweeds, Potamogeton wrightii (heterophyllous) and P. perfoliatus (homophyllous). The ABA-treated (1 or 10 μM) P. wrightii plants exhibited heterophylly and produced leaves with stomata. The obligate submerged P. perfoliatus plants were able to produce stomata on their leaves, but there were no changes to leaf shape, and stomatal production occurred only at a high ABA concentration (10 μM). Under salinity stress conditions, only P. wrightii leaves formed stomata. Additionally, the expression of stress-responsive NCED genes, which encode a key enzyme in ABA biosynthesis, was consistently up-regulated in P. wrightii, but only temporarily in P. perfoliatus. The observed species-specific gene expression patterns may be responsible for the induction or suppression of stomatal production during exposure to salinity stress. These results suggest that the two Potamogeton species have an innate morphogenetic ability to form stomata, but the actual production of stomata depends on ABA-mediated stress responses specific to each species and habitat.Electronic supplementary materialThe online version of this article (doi:10.1007/s10265-016-0844-x) contains supplementary material, which is available to authorized users.

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Molecular phylogeny of Japanese Potamogeton species in light of noncoding chloroplast sequences

Cited by 31 publications

References 16 publications

A Taxonomic Revision of Stuckenia (Potamogetonaceae) in Asia, with Notes on the Diversity and Variation of the Genus on a Worldwide Scale

A Taxonomic Revision of Stuckenia (Potamogetonaceae) in Asia, with Notes on the Diversity and Variation of the Genus on a Worldwide Scale

Two Simultaneously Occurring Potamogeton Species: Similarities and Differences in Seasonal Changes of Biomechanical Properties

Loss of heterophylly in aquatic plants: not ABA-mediated stress but exogenous ABA treatment induces stomatal leaves in Potamogeton perfoliatus

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