Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1111/nph.14436 |
Clinal population divergence in an adaptive parental environmental effect that adjusts seed banking | |
Lampei, Christian1,3; Metz, Johannes2; Tielboerger, Katja1 | |
通讯作者 | Lampei, Christian |
来源期刊 | NEW PHYTOLOGIST
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ISSN | 0028-646X |
EISSN | 1469-8137 |
出版年 | 2017 |
卷号 | 214期号:3页码:1230-1244 |
英文摘要 | Bet-hedging via between-year seed dormancy is a costly strategy for plants in unpredictable environments. Theoretically, fitness costs can be reduced through a parental environmental effect when the environment is partly predictable. We tested whether populations from environments that differ in predictability diverged in parental effects on seed dormancy. Common garden-produced seeds of the two annual plant species Biscutella didyma and Bromus fasciculatus collected along an aridity gradient were grown under 12 irrigation treatments. Offspring germination was evaluated and related to environmental correlations between generations and their fitness consequences at the four study sites. One species exhibited strong seed dormancy that increased with unpredictability in seasonal precipitation. The parental effect on seed dormancy also increased proportionally with the environmental correlation between precipitation in the parental season and seedling density in the following season; this correlation increased from mesic to arid environments. Because fitness was negatively related to density, this parental effect may be adaptive. However, the lack of dormancy in the second species indicates that bet-hedging is not the only strategy for annual plants in arid environments. Our results provide the first evidence for clinal variation in the relative strength of parental effects along environmental gradients. |
英文关键词 | bet-hedging clinal variation environmental autocorrelation maternal effect parental effect risk spreading seed dormancy transgenerational plasticity |
类型 | Article |
语种 | 英语 |
国家 | Germany |
收录类别 | SCI-E |
WOS记录号 | WOS:000402403900029 |
WOS关键词 | BET-HEDGING GERMINATION ; ANNUAL PLANTS ; MEDITERRANEAN POPULATIONS ; OPTIMIZING REPRODUCTION ; PHENOTYPIC PLASTICITY ; BREEDING SYSTEMS ; LOCAL ADAPTATION ; DESERT ANNUALS ; WATER-STRESS ; LONG-TERM |
WOS类目 | Plant Sciences |
WOS研究方向 | Plant Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/201249 |
作者单位 | 1.Univ Tubingen, Plant Ecol Grp, Morgenstelle 5, D-72076 Tubingen, Germany; 2.Univ Potsdam, Plant Ecol & Nat Conservat, Muhlenberg 3, D-14467 Potsdam, Germany; 3.Univ Hohenheim, Dept Crop Biodivers & Breeding Informat 350b, Fruwirthstr 21, D-70599 Stuttgart, Germany |
推荐引用方式 GB/T 7714 | Lampei, Christian,Metz, Johannes,Tielboerger, Katja. Clinal population divergence in an adaptive parental environmental effect that adjusts seed banking[J],2017,214(3):1230-1244. |
APA | Lampei, Christian,Metz, Johannes,&Tielboerger, Katja.(2017).Clinal population divergence in an adaptive parental environmental effect that adjusts seed banking.NEW PHYTOLOGIST,214(3),1230-1244. |
MLA | Lampei, Christian,et al."Clinal population divergence in an adaptive parental environmental effect that adjusts seed banking".NEW PHYTOLOGIST 214.3(2017):1230-1244. |
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