scholarly journals Massive Tandem Proliferation of ELIPs Supports Convergent Evolution of Desiccation Tolerance across Land Plants

2019 ◽  
Vol 179 (3) ◽  
pp. 1040-1049 ◽  
Author(s):  
Robert VanBuren ◽  
Jeremy Pardo ◽  
Ching Man Wai ◽  
Sterling Evans ◽  
Dorothea Bartels
Keyword(s):  
Desiccation Tolerance ◽  
Convergent Evolution ◽  
Land Plants

Desiccation Tolerance: Avoiding Cellular Damage During Drying and Rehydration

2020 ◽  
Vol 71 (1) ◽  
pp. 435-460 ◽  
Author(s):  
Melvin J. Oliver ◽  
Jill M. Farrant ◽  
Henk W.M. Hilhorst ◽  
Sagadevan Mundree ◽  
Brett Williams ◽  
...  
Keyword(s):  
Desiccation Tolerance ◽  
Cell Damage ◽  
Cellular Responses ◽  
Land Plants ◽  
Cellular Damage ◽  
Cellular Protection ◽  
Vegetative Tissues ◽  
Tolerant Plants ◽  
Core Set ◽  
Protection Mechanisms

Desiccation of plants is often lethal but is tolerated by the majority of seeds and by vegetative tissues of only a small number of land plants. Desiccation tolerance is an ancient trait, lost from vegetative tissues following the appearance of tracheids but reappearing in several lineages when selection pressures favored its evolution. Cells of all desiccation-tolerant plants and seeds must possess a core set of mechanisms to protect them from desiccation- and rehydration-induced damage. This review explores how desiccation generates cell damage and how tolerant cells assuage the complex array of mechanical, structural, metabolic, and chemical stresses and survive.Likewise, the stress of rehydration requires appropriate mitigating cellular responses. We also explore what comparative genomics, both structural and responsive, have added to our understanding of cellular protection mechanisms induced by desiccation, and how vegetative desiccation tolerance circumvents destructive, stress-induced cell senescence.

scholarly journals Group A PP2Cs evolved in land plants as key regulators of intrinsic desiccation tolerance

2013 ◽  
Vol 4 (1) ◽  
Author(s):  
Kenji Komatsu ◽  
Norihiro Suzuki ◽  
Mayuri Kuwamura ◽  
Yuri Nishikawa ◽  
Mao Nakatani ◽  
...  
Keyword(s):  
Desiccation Tolerance ◽  
Land Plants ◽  
Group A

scholarly journals Desiccation tolerance in streptophyte algae and the algae to land plant transition: evolution of LEA and MIP protein families within the Viridiplantae

2020 ◽  
Vol 71 (11) ◽  
pp. 3270-3278 ◽  
Author(s):  
Burkhard Becker ◽  
Xuehuan Feng ◽  
Yanbin Yin ◽  
Andreas Holzinger
Keyword(s):  
Desiccation Tolerance ◽  
Experimental Studies ◽  
Sister Group ◽  
Land Plant ◽  
Late Embryogenesis Abundant ◽  
Land Plants ◽  
Desiccation Stress ◽  
Protein Families ◽  
Intrinsic Protein ◽  
Late Embryogenesis

Abstract The present review summarizes the effects of desiccation in streptophyte green algae, as numerous experimental studies have been performed over the past decade particularly in the early branching streptophyte Klebsormidium sp. and the late branching Zygnema circumcarinatum. The latter genus gives its name to the Zygenmatophyceae, the sister group to land plants. For both organisms, transcriptomic investigations of desiccation stress are available, and illustrate a high variability in the stress response depending on the conditions and the strains used. However, overall, the responses of both organisms to desiccation stress are very similar to that of land plants. We highlight the evolution of two highly regulated protein families, the late embryogenesis abundant (LEA) proteins and the major intrinsic protein (MIP) family. Chlorophytes and streptophytes encode LEA4 and LEA5, while LEA2 have so far only been found in streptophyte algae, indicating an evolutionary origin in this group. Within the MIP family, a high transcriptomic regulation of a tonoplast intrinsic protein (TIP) has been found for the first time outside the embryophytes in Z. circumcarinatum. The MIP family became more complex on the way to terrestrialization but simplified afterwards. These observations suggest a key role for water transport proteins in desiccation tolerance of streptophytes.

Genome-level responses to the environment: plant desiccation tolerance

2019 ◽  
Vol 3 (2) ◽  
pp. 153-163 ◽  
Author(s):  
Mariana A. Silva Artur ◽  
Maria-Cecília D. Costa ◽  
Jill M. Farrant ◽  
Henk W.M. Hilhorst
Keyword(s):  
Water Loss ◽  
Desiccation Tolerance ◽  
Higher Plants ◽  
Environmental Stressors ◽  
Land Plants ◽  
Reproductive Tissues ◽  
Genome Level ◽  
Sessile Organisms

Abstract Plants being sessile organisms are well equipped genomically to respond to environmental stressors peculiar to their habitat. Evolution of plants onto land was enabled by the ability to tolerate extreme water loss (desiccation), a feature that has been retained within genomes but not universally expressed in most land plants today. In the majority of higher plants, desiccation tolerance (DT) is expressed only in reproductive tissues (seeds and pollen), but some 135 angiosperms display vegetative DT. Here, we review genome-level responses associated with DT, pointing out common and yet sometimes discrepant features, the latter relating to evolutionary adaptations to particular niches. Understanding DT can lead to the ultimate production of crops with greater tolerance of drought than is currently realized.

Patterns of leaf development in anisophyllous shoots

1992 ◽  
Vol 70 (4) ◽  
pp. 676-691 ◽  
Author(s):  
Nancy G. Dengler
Keyword(s):  
Key Words ◽  
Leaf Development ◽  
Convergent Evolution ◽  
Leaf Growth ◽  
Leaf Size ◽  
Leaf Primordium ◽  
Land Plants ◽  
Bud Development ◽  
Leaf Size And Shape ◽  
Correlated Characters

Comparisons of the development of the dimorphic leaves of anisophyllous shoots can be used to understand how ontogenies might be modified during evolution to produce morphological change. In anisophyllous shoots, leaves of different sizes are borne on the dorsal and ventral sides of plagiotropic stems. Anisophylly is regarded as an adaptation for light interception in strongly shaded habitats since the small size of dorsal leaves and orientation of leaf blades minimizes self-shading. Anisophylly affects not only the patterns of leaf development, but also shoot symmetry, phyllotaxis, and bud development. Pronounced anisophylly is widely distributed throughout the land plants as a result of convergent evolution, possibly in response to similar selection pressures. In taxa where the expression of anisophylly is fixed, leaf primordium size and correlated characters, including the development of procambium, differ between dorsal and ventral sides of the shoot from the first plastochron. In contrast, patterns of dorsal and ventral leaf growth and correlated characteristics diverge late in development, often at the time leaves expand from the bud, in taxa where the expression of anisophylly is facultative. These observations indicate that changes in the timing of developmental events can account for many, but not all, of the ontogenetic alterations that result in divergent leaf size and shape on the same shoot and, by implication, accompany the evolution of new taxa. Key words: leaf development, anisophylly, heterochrony.

scholarly journals Phylogenomics reveals convergent evolution of red-violet coloration in land plants and the origins of the anthocyanin biosynthetic pathway

2020 ◽  
Vol 151 ◽  
pp. 106904 ◽  
Author(s):  
Bryan T. Piatkowski ◽  
Karn Imwattana ◽  
Erin A. Tripp ◽  
David J. Weston ◽  
Adam Healey ◽  
...  
Keyword(s):  
Convergent Evolution ◽  
Biosynthetic Pathway ◽  
Land Plants ◽  
Anthocyanin Biosynthetic Pathway

Convergent evolution of shoots in land plants: lack of auxin polar transport in moss shoots

2008 ◽  
Vol 10 (2) ◽  
pp. 176-186 ◽  
Author(s):  
Tomomichi Fujita ◽  
Hisako Sakaguchi ◽  
Yuji Hiwatashi ◽  
Steven J. Wagstaff ◽  
Motomi Ito ◽  
...  
Keyword(s):  
Convergent Evolution ◽  
Land Plants ◽  
Polar Transport ◽  
Auxin Polar Transport

scholarly journals Comparative transcriptome analysis suggests convergent evolution of desiccation tolerance in Selaginella species

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Gerardo Alejo-Jacuinde ◽  
Sandra Isabel González-Morales ◽  
Araceli Oropeza-Aburto ◽  
June Simpson ◽  
Luis Herrera-Estrella
Keyword(s):  
Desiccation Tolerance ◽  
Convergent Evolution ◽  
Plant Evolution ◽  
Comparative Approach ◽  
Antioxidant Systems ◽  
Cell Wall Modification ◽  
Tolerant Species ◽  
Gene Sets ◽  
Wide Range ◽  
Species Specific

Abstract Background Desiccation tolerant Selaginella species evolved to survive extreme environmental conditions. Studies to determine the mechanisms involved in the acquisition of desiccation tolerance (DT) have focused on only a few Selaginella species. Due to the large diversity in morphology and the wide range of responses to desiccation within the genus, the understanding of the molecular basis of DT in Selaginella species is still limited. Results Here we present a reference transcriptome for the desiccation tolerant species S. sellowii and the desiccation sensitive species S. denticulata. The analysis also included transcriptome data for the well-studied S. lepidophylla (desiccation tolerant), in order to identify DT mechanisms that are independent of morphological adaptations. We used a comparative approach to discriminate between DT responses and the common water loss response in Selaginella species. Predicted proteomes show strong homology, but most of the desiccation responsive genes differ between species. Despite such differences, functional analysis revealed that tolerant species with different morphologies employ similar mechanisms to survive desiccation. Significant functions involved in DT and shared by both tolerant species included induction of antioxidant systems, amino acid and secondary metabolism, whereas species-specific responses included cell wall modification and carbohydrate metabolism. Conclusions Reference transcriptomes generated in this work represent a valuable resource to study Selaginella biology and plant evolution in relation to DT. Our results provide evidence of convergent evolution of S. sellowii and S. lepidophylla due to the different gene sets that underwent selection to acquire DT

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