文献类型：期刊文献

英文题名：Clonal parental effects on competitive interactions between two duckweeds

作者：He, Lin-Xuan[1,2] Jin, Yu[1,3] Zhang, Xiao-Mei[1] Luo, Fang-Li[3] Xue, Wei[1] Lei, Jing-Pin[2] Liu, He[1] Yu, Fei-Hai[1]

第一作者：He, Lin-Xuan

通信作者：Liu, H[1]

机构：[1]Taizhou Univ, Inst Wetland Ecol & Clone Ecol, Zhejiang Prov Key Lab Evolutionary Ecol & Conserva, Taizhou, Zhejiang, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry, Beijing, Peoples R China;[3]Beijing Forestry Univ, Sch Ecol & Nat Conservat, Beijing, Peoples R China

年份：2025

卷号：16

外文期刊名：FRONTIERS IN PLANT SCIENCE

收录：;Scopus(收录号：2-s2.0-105010937424);WOS:【SCI-EXPANDED(收录号:WOS:001529324800001)】；

基金：The author(s) declare that financial support was received for the research and/or publication of this article. This study was supported by the Natural Science Foundation of China (grants 32401312, 32371584).

语种：英文

外文关键词：clonal plants; competitiveness; interspecific interactions; maternal effect; nutrient availability; transgenerational plasticity

摘要：Introduction Parental environments can influence offspring fitness via clonal (asexual) propagation, and such clonal parental effects may vary among plant species and depend on offspring environments as well. Consequently, clonal parental effects may alter competitive interactions between plant species, and such impacts may vary with offspring environments.Methods We conducted a two-phase experiment with two clonal floating duckweeds, Spirodela polyrhiza and Lemna minor. In the parental phase, S. polyrhiza and L. minor were grown separately under two distinct nutrient conditions and produced offspring ramets. In the offspring phase, the ramets produced from the parental phase were grown with or without a heterospecific neighbor under the same two nutrient conditions.Results and discussion In the first phase, parent ramets of both species produced more biomass and offspring ramets under high nutrient availability than under low. In the second phase, nutrient availability experienced by the parents significantly affected the competitive ability of offspring in both species. Specifically, the offspring of L. minor suppressed those of S. polyrhiza more strongly when the parent of L. minor had been grown under high than low nutrient availability, although such clonal parental effects did not vary with nutrient availability experienced by the offspring. In contrast, the offspring of S. polyrhiza suppressed those of L. minor more strongly when the parent of S. polyrhiza had been grown under high rather than at low nutrient availability, but this effect occurred only under high nutrient availability for the offspring and diminished under low nutrient availability. These results suggest that clonal parental effects can influence competitiveness of plants and may vary depending on offspring environments. Our findings highlight the potential role of clonal parental effects in regulating interspecific interactions, which may further influence species composition and productivity of plant communities.