Scientific Note: Capsule-Seed Allometric Relationships in Ludwigia ravenii (Onagraceae), a Critically Imperiled Wetland-Obligate

Lindelof, Kira; Krings, Alexander

doi:10.2179/0008-7475.86.2.278

Cited by 5 publications

(12 citation statements)

References 2 publications

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“…However, several authors, including Okada et al (2009) and Grewell et al (2016), continue to recognize two distinct species. In this paper, species were named as described by Nesom and Kartesz (2000) and Armitage et al (2013), i.e., considered as two subspecies of L. grandiflora (Lgg and Lgh). So, phylogenetic studies (Liu et al 2017) revealed that the L. peploides (2x) or a relative and the L. adscendens (4x) have probably contributed its genome to the origin of L. stolonifera and of the triploid hybrid for L. × taiwanensis (3x), respectively.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Studies of Liu et al (2017) confirmed close relationship between Lgg and Lgh. So, Nesom and Kartesz (2000) suggested that as Lgg and Lgh shared genomic portions and possible hybridization between them, both species were recognized as subspecies within the single species L. grandiflora. However, several authors, including Okada et al (2009) and Grewell et al (2016), continue to recognize two distinct species.…”

Section: Introductionmentioning

confidence: 99%

“…However, several authors, including Okada et al (2009) and Grewell et al (2016), continue to recognize two distinct species. In this paper, species were named as described by Nesom and Kartesz (2000) and Armitage et al (2013) Raven, can be invasive weeds in wetlands and other wet areas in the USA (Grewell et al, 2016), Europe (Portillo-Lemus et al, 2021), Japan (Hieda et al, 2020), and Korea (Kim et al, 2019). Recently, Méndez Santos and González-Sivilla (2020) revealed that L. helminthorrhiza (Mart.)…”

Section: Introductionmentioning

confidence: 99%

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Genomic relationships among diploid and polyploid species of the genusLudwigiaL. sectionJussiaeausing a combination of molecular cytogenetic, morphological, and crossing investigations

Barloy

Lemus

Krueger‐Hadfield

et al. 2023

Preprint

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The genus Ludwigia L. section Jussiaea is composed of a polyploid species complex with 2x, 4x, 6x and 10x ploidy levels, suggesting possible hybrid origins. The aim of the present study is to understand the genomic relationships among diploid and polyploid species in the section Jussiaea. Morphological and cytogenetic observations, controlled crosses, genomic in situ hybridization (GISH), and flow cytometry were used to characterize species, ploidy levels, ploidy patterns, and genomic composition across taxa. Genome sizes obtained were in agreement with the diploid, tetraploid, hexaploid, and decaploid ploidy levels. Results of GISH showed that progenitors of Ludwigia stolonifera (4x) were Ludwigia peploides subsp. montevidensis (2x) and Ludwigia helminthorrhiza (2x), which also participated for one part (2x) to the Ludwigia ascendens genome (4x). Ludwigia grandiflora subsp. hexapetala (10x) resulted from the hybridization between L. stolonifera (4x) and Ludwigia grandiflora subsp. grandiflora (6x). One progenitor of L. grandiflora subsp. grandiflora was identified as L. peploides (2x). Our results suggest the existence of several processes of hybridization, leading to polyploidy, and possibly allopolyploidy, in the section Jussiaea due to the diversity of ploidy levels. The success of GISH opens up the potential for future studies to identify other missing progenitors in Ludwigia L. as well as other taxa.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…However, several authors, including Okada et al (2009) and Grewell et al (2016), continue to recognize two distinct species. In this paper, species were named as described by Nesom and Kartesz (2000) and Armitage et al (2013) Raven, can be invasive weeds in wetlands and other wet areas in the USA (Grewell et al, 2016), Europe (Portillo-Lemus et al, 2021), Japan (Hieda et al, 2020), and Korea (Kim et al, 2019). Recently, Méndez Santos and González-Sivilla (2020) revealed that L. helminthorrhiza (Mart.)…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Genomic relationships among diploid and polyploid species of the genusLudwigiaL. sectionJussiaeausing a combination of molecular cytogenetic, morphological, and crossing investigations

Barloy

Lemus

Krueger‐Hadfield

et al. 2023

Preprint

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“…Ludwigia grandiflora is native from the southern United States to America (Nesom & kartesz, 2000; Raven, 1963). It is considered an invasive alien plant that thrives on the edges of water and inhibits the growth of other native plants.…”

Section: Introductionmentioning

confidence: 99%

Chemical composition and in vitro ruminal digestibility of Ludwigia grandiflora

Oku

Inoue

Hieda

et al. 2021

Animal Science Journal

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Ludwigia grandiflora is an amphibious plant that has been designated as a specific alien plant in Japan. Due to the risk of regeneration on land, plants are burned after eradication. Since L. grandiflora is fertile and rich in biomass, this study investigated the use of L. grandiflora as a feed for ruminants. We measured general components, detergent fiber components, and in vitro dry matter digestibility (IVDMD) using rumen microbes for three forms (terrestrial form, emergent form, and floating‐leaved form) of L. grandiflora. In addition, concentrations of hazardous metallic elements were also measured from the viewpoint of feed safety. Crude protein, neutral detergent fiber, acid detergent fiber, and acid detergent lignin were contained 10.31–14.62, 27.83–42.28, 20.54–36.05, and 6.94–18.90 (%DM), respectively. IVDMD was 50.75%–68.24%. Toxic elements such as Pb, Cd, and Hg were not detected in all forms. These results suggest that L. grandiflora could be partially used as alternative roughage for ruminants.

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Self‐incompatibility limits sexual reproduction rather than environmental conditions in an invasive water primrose

Lemus

Bozec

et al. 2021

Plant Enviro Interactions

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Fruit-set and seed-set depend on environmental conditions and reproductive systems. They are important components of sexual reproductive success in plants. They also control the ecological success and adaptation of invasive plants within their nonnative ecosystems. We studied which factors bring about fruit-set and seed-set in invasive populations of the aquatic plant Ludwigia grandiflora subsp. hexapetala. We analyzed fruit set and seed set in 37 populations growing under variable climatic conditions in Western Europe. Sub-samples of seven fruitful and fruitless populations were grown in common controlled conditions. We carried out self-and crosspollinations, and measured the floral morphometry. Environmental conditions did not affect fruit-set and seed-set in-situ and in common controlled environments. Handpollinations showed that individuals from fruitful populations exhibited fruit and seed production whatever the pollen donor, whereas individuals from fruitless populations only did so when pollen came from fruitful populations. Floral morphometry evidenced the existence of two floral morphs that fully overlapped with fruitfulness, and individual incompatibility. Our results rebutted the hypothesis that environmental variations control fruit set and seed set in these invasive populations. We instead showed that fruit set and seed set were controlled by a heteromorphic reproductive system involving a self-incompatible and inter-morph compatible morph (long-styled morph), and a self-and inter-morph compatible reverse morph (short-styled morph).We collected morphs and fruit set records of this species worldwide and found the same relationship: fruitless populations were all composed only of individuals with long-styled floral morph. Our study constitutes the first evidence of a heteromorphic self-incompatible system in Ludwigia genus and Onagraceae family. K E Y W O R D Sheteromorphic self-incompatible system, freshwater invasion, climate impact, management plan, Ludwigia grandiflora subsp. HexapetalaThis is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Scientific Note: Capsule-Seed Allometric Relationships in Ludwigia ravenii (Onagraceae), a Critically Imperiled Wetland-Obligate

Cited by 5 publications

References 2 publications

Genomic relationships among diploid and polyploid species of the genusLudwigiaL. sectionJussiaeausing a combination of molecular cytogenetic, morphological, and crossing investigations

Genomic relationships among diploid and polyploid species of the genusLudwigiaL. sectionJussiaeausing a combination of molecular cytogenetic, morphological, and crossing investigations

Chemical composition and in vitro ruminal digestibility of Ludwigia grandiflora

Self‐incompatibility limits sexual reproduction rather than environmental conditions in an invasive water primrose

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