Cargando…
Impacts of growth form and phylogenetic relatedness on seed germination: A large‐scale analysis of a subtropical regional flora
Plant regeneration strategy plays a critical role in species survival and can be used as a proxy for the evolutionary response of species to climate change. However, information on the effects of key plant traits and phylogenetic relatedness on seed germination is limited at large regional scales th...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7863672/ https://www.ncbi.nlm.nih.gov/pubmed/33598130 http://dx.doi.org/10.1002/ece3.7132 |
_version_ | 1783647526000263168 |
---|---|
author | Wang, JuHong Xu, GeXi Chen, Wen Ma, YanBo Qi, Wei Zhang, ChunHui Cui, XianLiang |
author_facet | Wang, JuHong Xu, GeXi Chen, Wen Ma, YanBo Qi, Wei Zhang, ChunHui Cui, XianLiang |
author_sort | Wang, JuHong |
collection | PubMed |
description | Plant regeneration strategy plays a critical role in species survival and can be used as a proxy for the evolutionary response of species to climate change. However, information on the effects of key plant traits and phylogenetic relatedness on seed germination is limited at large regional scales that vary in climate. To test the hypotheses that phylogenetic niche conservatism plays a critical force in shaping seed ecophysiological traits across species, and also drives their response to climatic fluctuation, we conducted a controlled experiment on seed germination and determined the percentage and rate of germination for 249 species in subtropical China under two temperature regimes (i.e., daily 25°C; daily alternating 25/15°C for each 12 hr). Germination was low with a skewed distribution (mean = 38.9% at 25°C, and 43.3% at 25/15°C). One fifth of the species had low (<10%) and slow (4–30 days) germination, and only a few (8%) species had a high (>80%) and rapid (1.2–6.6 days) germination. All studied plant traits (including germination responses) showed a significant phylogenetic signal, with an exception of seed germination percentage under the alternating temperature scenario. Generalized linear models (GLMs) and phylogenetic generalized estimation equations (GEEs) demonstrated that growth form and seed dispersal mode were strong drivers of germination. Our experimental study highlights that integrating plant key traits and phylogeny is critical to predicting seed germination response to future climate change. |
format | Online Article Text |
id | pubmed-7863672 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-78636722021-02-16 Impacts of growth form and phylogenetic relatedness on seed germination: A large‐scale analysis of a subtropical regional flora Wang, JuHong Xu, GeXi Chen, Wen Ma, YanBo Qi, Wei Zhang, ChunHui Cui, XianLiang Ecol Evol Original Research Plant regeneration strategy plays a critical role in species survival and can be used as a proxy for the evolutionary response of species to climate change. However, information on the effects of key plant traits and phylogenetic relatedness on seed germination is limited at large regional scales that vary in climate. To test the hypotheses that phylogenetic niche conservatism plays a critical force in shaping seed ecophysiological traits across species, and also drives their response to climatic fluctuation, we conducted a controlled experiment on seed germination and determined the percentage and rate of germination for 249 species in subtropical China under two temperature regimes (i.e., daily 25°C; daily alternating 25/15°C for each 12 hr). Germination was low with a skewed distribution (mean = 38.9% at 25°C, and 43.3% at 25/15°C). One fifth of the species had low (<10%) and slow (4–30 days) germination, and only a few (8%) species had a high (>80%) and rapid (1.2–6.6 days) germination. All studied plant traits (including germination responses) showed a significant phylogenetic signal, with an exception of seed germination percentage under the alternating temperature scenario. Generalized linear models (GLMs) and phylogenetic generalized estimation equations (GEEs) demonstrated that growth form and seed dispersal mode were strong drivers of germination. Our experimental study highlights that integrating plant key traits and phylogeny is critical to predicting seed germination response to future climate change. John Wiley and Sons Inc. 2021-01-07 /pmc/articles/PMC7863672/ /pubmed/33598130 http://dx.doi.org/10.1002/ece3.7132 Text en © 2021 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Research Wang, JuHong Xu, GeXi Chen, Wen Ma, YanBo Qi, Wei Zhang, ChunHui Cui, XianLiang Impacts of growth form and phylogenetic relatedness on seed germination: A large‐scale analysis of a subtropical regional flora |
title | Impacts of growth form and phylogenetic relatedness on seed germination: A large‐scale analysis of a subtropical regional flora |
title_full | Impacts of growth form and phylogenetic relatedness on seed germination: A large‐scale analysis of a subtropical regional flora |
title_fullStr | Impacts of growth form and phylogenetic relatedness on seed germination: A large‐scale analysis of a subtropical regional flora |
title_full_unstemmed | Impacts of growth form and phylogenetic relatedness on seed germination: A large‐scale analysis of a subtropical regional flora |
title_short | Impacts of growth form and phylogenetic relatedness on seed germination: A large‐scale analysis of a subtropical regional flora |
title_sort | impacts of growth form and phylogenetic relatedness on seed germination: a large‐scale analysis of a subtropical regional flora |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7863672/ https://www.ncbi.nlm.nih.gov/pubmed/33598130 http://dx.doi.org/10.1002/ece3.7132 |
work_keys_str_mv | AT wangjuhong impactsofgrowthformandphylogeneticrelatednessonseedgerminationalargescaleanalysisofasubtropicalregionalflora AT xugexi impactsofgrowthformandphylogeneticrelatednessonseedgerminationalargescaleanalysisofasubtropicalregionalflora AT chenwen impactsofgrowthformandphylogeneticrelatednessonseedgerminationalargescaleanalysisofasubtropicalregionalflora AT mayanbo impactsofgrowthformandphylogeneticrelatednessonseedgerminationalargescaleanalysisofasubtropicalregionalflora AT qiwei impactsofgrowthformandphylogeneticrelatednessonseedgerminationalargescaleanalysisofasubtropicalregionalflora AT zhangchunhui impactsofgrowthformandphylogeneticrelatednessonseedgerminationalargescaleanalysisofasubtropicalregionalflora AT cuixianliang impactsofgrowthformandphylogeneticrelatednessonseedgerminationalargescaleanalysisofasubtropicalregionalflora |