Evolution of cold tolerance in the highly stress-tolerant samphires and relatives (Salicornieae: Amaranthaceae)
Cousins-Westerberg, Ruben LU
; Dakin, Nicole
; Schat, Laura
; Kadereit, Gudrun
and Humphreys, Aelys M.
(2023)
In Botanical Journal of the Linnean Society
203(1).
p.20-36
- Abstract
Low temperature constitutes one of the main barriers to plant distributions, confining many clades to their ancestrally tropical biome. However, recent evidence suggests that transitions from tropical to temperate biomes may be more frequent than previously thought. Here, we study the evolution of cold and frost tolerance in the globally distributed and highly stress-tolerant Salicornieae (Salicornioideae, Amaranthaceae s.l.). We first generate a phylogenetic tree comprising almost all known species (85-90%), using newly generated (n = 106) and published nuclear-ribosomal and plastid sequences. Next, we use geographical occurrence data to document in which clades and geographical regions cold-tolerant species occur and reconstruct how... (More)
Low temperature constitutes one of the main barriers to plant distributions, confining many clades to their ancestrally tropical biome. However, recent evidence suggests that transitions from tropical to temperate biomes may be more frequent than previously thought. Here, we study the evolution of cold and frost tolerance in the globally distributed and highly stress-tolerant Salicornieae (Salicornioideae, Amaranthaceae s.l.). We first generate a phylogenetic tree comprising almost all known species (85-90%), using newly generated (n = 106) and published nuclear-ribosomal and plastid sequences. Next, we use geographical occurrence data to document in which clades and geographical regions cold-tolerant species occur and reconstruct how cold tolerance evolved. Finally, we test for correlated evolution between frost tolerance and the annual life form. We find that frost tolerance has evolved independently in up to four Northern Hemisphere lineages but that annuals are no more likely to evolve frost tolerance than perennials, indicating the presence of different strategies for adapting to cold environments. Our findings add to mounting evidence for multiple independent out-of-the-tropics transitions among close relatives of flowering plants and raise new questions about the ecological and physiological mechanism(s) of adaptation to low temperatures in Salicornieae.
(Less)
- author
- Cousins-Westerberg, Ruben
LU
; Dakin, Nicole
; Schat, Laura
; Kadereit, Gudrun
and Humphreys, Aelys M.
- publishing date
- 2023-09-01
- type
- Contribution to journal
- publication status
- published
- keywords
- annuals, biome transition, distribution, frost tolerance, life history, niche evolution, temperature
- in
- Botanical Journal of the Linnean Society
- volume
- 203
- issue
- 1
- pages
- 17 pages
- publisher
- Oxford University Press
- external identifiers
-
- scopus:85191720074
- ISSN
- 0024-4074
- DOI
- 10.1093/botlinnean/boad009
- language
- English
- LU publication?
- no
- additional info
- Publisher Copyright: © 2023 The Linnean Society of London.
- id
- 86e90f8a-a4d9-47df-8be9-d84097fa7503
- date added to LUP
- 2024-06-20 16:33:50
- date last changed
- 2024-07-02 17:04:30
@article{86e90f8a-a4d9-47df-8be9-d84097fa7503,
abstract = {{<p>Low temperature constitutes one of the main barriers to plant distributions, confining many clades to their ancestrally tropical biome. However, recent evidence suggests that transitions from tropical to temperate biomes may be more frequent than previously thought. Here, we study the evolution of cold and frost tolerance in the globally distributed and highly stress-tolerant Salicornieae (Salicornioideae, Amaranthaceae s.l.). We first generate a phylogenetic tree comprising almost all known species (85-90%), using newly generated (n = 106) and published nuclear-ribosomal and plastid sequences. Next, we use geographical occurrence data to document in which clades and geographical regions cold-tolerant species occur and reconstruct how cold tolerance evolved. Finally, we test for correlated evolution between frost tolerance and the annual life form. We find that frost tolerance has evolved independently in up to four Northern Hemisphere lineages but that annuals are no more likely to evolve frost tolerance than perennials, indicating the presence of different strategies for adapting to cold environments. Our findings add to mounting evidence for multiple independent out-of-the-tropics transitions among close relatives of flowering plants and raise new questions about the ecological and physiological mechanism(s) of adaptation to low temperatures in Salicornieae.</p>}},
author = {{Cousins-Westerberg, Ruben and Dakin, Nicole and Schat, Laura and Kadereit, Gudrun and Humphreys, Aelys M.}},
issn = {{0024-4074}},
keywords = {{annuals; biome transition; distribution; frost tolerance; life history; niche evolution; temperature}},
language = {{eng}},
month = {{09}},
number = {{1}},
pages = {{20--36}},
publisher = {{Oxford University Press}},
series = {{Botanical Journal of the Linnean Society}},
title = {{Evolution of cold tolerance in the highly stress-tolerant samphires and relatives (Salicornieae: Amaranthaceae)}},
url = {{http://dx.doi.org/10.1093/botlinnean/boad009}},
doi = {{10.1093/botlinnean/boad009}},
volume = {{203}},
year = {{2023}},
}