Flora: Morphology, Distribution, Functional Ecology of Plants, volume 286, pages 151976
Morphological and phylogenetic evidence that the novel leaf structures of multivein Selaginella schaffneri are derived traits
Liu Jianwei
1
,
Huang Chun-Lin
2
,
Valdespino Ivan Alberto
3
,
Ho Jia Fang
1, 2
,
Lee Tzu-Yun
1
,
Chesson Peter
1, 4
,
Sheue Chiou‐Rong
1, 4
2
Laboratory of Molecular Phylogenetics, Department of Biology, National Museum of Natural Science, No.1, Guancian Rd., North Dist., Taichung City 404605, Taiwan
|
3
Departamento de Botánica, Facultad de Ciencias Naturales, Exactas y Tecnología, Universidad de Panamá; Sistema Nacional de Investigación (SNI), SENACYT, Panama, Panama
|
Publication type: Journal Article
Publication date: 2022-01-01
Quartile SCImago
Q2
Quartile WOS
Q3
Impact factor: 1.9
ISSN: 03672530
Plant Science
Ecology, Evolution, Behavior and Systematics
Ecology
Abstract
• The structure of multivein Selaginella schaffneri supports the microphyll concept. • Leaf veins originate from a vein node derived from a single strand with no leaf gap. • The microphylls have bundle sheath cells and multiple stomatal types. • S. schaffneri is the earliest diverging lineage within subgenus Stachygynandrum . • Homoplasy with angiosperms in complex derived drought resistance traits. Microphylls, simple leaves with a single vein and no leaf gap, are the typical lycophyte leaves. However, Selaginella schaffneri has complex veins. Structural features and phylogeny associated with this unusual venation have remained unknown. We studied the leaf, venation, spore structures, and phylogeny of S. schaffneri , with S. erythropus as a typical Selaginella for comparison. Leaf veins of both S. schaffneri and S. erythropus originate from a single vascular strand in the stem and have no leaf gaps. In S. schaffneri, this single vascular strand prominently enlarges as a hub-like vein node at the leaf base and then divides multiply in the leaf blade. Unusual structures, more commonly found in angiosperms, are revealed, including vessels, bundle sheath cells, three stomatal types, and differentiated mesophyll tissue. Other unusual structures include transparent zones on the leaf margin and a complex open hexagonal three-dimensional structure on the megaspore walls. Fifty one concatenated protein-coding genes from plastomes were used to construct the phylogeny of S. schaffneri within Selaginellaceae, which shows that S. schaffneri , together with the sanguinolenta group, is the earliest-diverging lineage of subgenus Stachygynandrum . The unusual structures of S. schaffneri are consistent with drought resistance. However, these structures are not known in more basal members of Selaginella and appear to be derived in S. schaffneri . The leaf veins of S. schaffneri , originating from the branching of a single vein, imply a variation on a microphyll. Despite the general simplicity of structure in Selaginella, S. schaffneri shows unusual structural homoplasy with angiosperms in these traits.
Citations by journals
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International Journal of Plant Sciences
1 publication, 25%
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Botany Letters
1 publication, 25%
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Protoplasma
1 publication, 25%
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1
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Citations by publishers
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1
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University of Chicago Press
1 publication, 25%
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Taylor & Francis
1 publication, 25%
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Springer Nature
1 publication, 25%
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1
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Liu J. et al. Morphological and phylogenetic evidence that the novel leaf structures of multivein Selaginella schaffneri are derived traits // Flora: Morphology, Distribution, Functional Ecology of Plants. 2022. Vol. 286. p. 151976.
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Liu J., Huang C., Valdespino I. A., Ho J. F., Lee T., Chesson P., Sheue C. Morphological and phylogenetic evidence that the novel leaf structures of multivein Selaginella schaffneri are derived traits // Flora: Morphology, Distribution, Functional Ecology of Plants. 2022. Vol. 286. p. 151976.
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TY - JOUR
DO - 10.1016/j.flora.2021.151976
UR - https://doi.org/10.1016/j.flora.2021.151976
TI - Morphological and phylogenetic evidence that the novel leaf structures of multivein Selaginella schaffneri are derived traits
T2 - Flora: Morphology, Distribution, Functional Ecology of Plants
AU - Liu, Jianwei
AU - Huang, Chun-Lin
AU - Valdespino, Ivan Alberto
AU - Ho, Jia Fang
AU - Lee, Tzu-Yun
AU - Chesson, Peter
AU - Sheue, Chiou‐Rong
PY - 2022
DA - 2022/01/01 00:00:00
PB - Elsevier
SP - 151976
VL - 286
SN - 0367-2530
ER -
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@article{2022_Liu,
author = {Jianwei Liu and Chun-Lin Huang and Ivan Alberto Valdespino and Jia Fang Ho and Tzu-Yun Lee and Peter Chesson and Chiou‐Rong Sheue},
title = {Morphological and phylogenetic evidence that the novel leaf structures of multivein Selaginella schaffneri are derived traits},
journal = {Flora: Morphology, Distribution, Functional Ecology of Plants},
year = {2022},
volume = {286},
publisher = {Elsevier},
month = {jan},
url = {https://doi.org/10.1016/j.flora.2021.151976},
pages = {151976},
doi = {10.1016/j.flora.2021.151976}
}