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Phenotypic plasticity masks range-wide genetic differentiation for vegetative but not reproductive traits in a short-lived plant
Ecology Letters ( IF 7.6 ) Pub Date : 2021-08-05 , DOI: 10.1111/ele.13858
Jesus Villellas 1, 2, 3 , Johan Ehrlén 4 , Elizabeth E Crone 5 , Anna Mária Csergő 2, 6 , Maria B Garcia 7 , Anna-Liisa Laine 8, 9 , Deborah A Roach 10 , Roberto Salguero-Gómez 11, 12, 13 , Glenda M Wardle 14 , Dylan Z Childs 15 , Bret D Elderd 16 , Alain Finn 2 , Sergi Munné-Bosch 17, 18 , Benedicte Bachelot 19 , Judit Bódis 20 , Anna Bucharova 21, 22 , Christina M Caruso 23 , Jane A Catford 24, 25 , Matthew Coghill 26 , Aldo Compagnoni 27 , Richard P Duncan 28 , John M Dwyer 13, 29 , Aryana Ferguson 30 , Lauchlan H Fraser 26 , Emily Griffoul 31 , Ronny Groenteman 32 , Liv Norunn Hamre 33 , Aveliina Helm 34 , Ruth Kelly 2, 35 , Lauri Laanisto 36 , Michele Lonati 37 , Zuzana Münzbergová 38, 39 , Paloma Nuche 2 , Siri Lie Olsen 40 , Adrian Oprea 41 , Meelis Pärtel 34 , William K Petry 42 , Satu Ramula 43 , Pil U Rasmussen 4, 44 , Simone Ravetto Enri 37 , Anna Roeder 45, 46 , Christiane Roscher 45, 46 , Cheryl Schultz 47 , Olav Skarpaas 48 , Annabel L Smith 2, 49 , Ayco J M Tack 4 , Joachim Paul Töpper 40 , Peter A Vesk 50 , Gregory E Vose 51 , Elizabeth Wandrag 28, 52 , Astrid Wingler 53 , Yvonne M Buckley 2, 13
Affiliation  

Genetic differentiation and phenotypic plasticity jointly shape intraspecific trait variation, but their roles differ among traits. In short-lived plants, reproductive traits may be more genetically determined due to their impact on fitness, whereas vegetative traits may show higher plasticity to buffer short-term perturbations. Combining a multi-treatment greenhouse experiment with observational field data throughout the range of a widespread short-lived herb, Plantago lanceolata, we (1) disentangled genetic and plastic responses of functional traits to a set of environmental drivers and (2) assessed how genetic differentiation and plasticity shape observational trait–environment relationships. Reproductive traits showed distinct genetic differentiation that largely determined observational patterns, but only when correcting traits for differences in biomass. Vegetative traits showed higher plasticity and opposite genetic and plastic responses, masking the genetic component underlying field-observed trait variation. Our study suggests that genetic differentiation may be inferred from observational data only for the traits most closely related to fitness.

中文翻译:

表型可塑性掩盖了短寿命植物营养性状而非生殖性状的广泛遗传分化

遗传分化和表型可塑性共同塑造种内性状变异,但它们的作用因性状而异。在寿命短的植物中,生殖性状可能更多地由遗传决定,因为它们对适应度有影响,而营养性状可能表现出更高的可塑性以缓冲短期扰动。将多处理温室试验与广泛分布的短寿命草本植物车前草(Plantago lanceolata)范围内的实地观察数据相结合,我们(1)解开功能性状对一组环境驱动因素的遗传和可塑性反应,(2)评估遗传分化和可塑性如何影响观察性状-环境关系。生殖性状显示出明显的遗传分化,这在很大程度上决定了观察模式,但仅在针对生物量差异校正性状时。植物性状显示出更高的可塑性和相反的遗传和可塑性反应,掩盖了田间观察到的性状变异的遗传成分。我们的研究表明,遗传分化可能只能从与健康最密切相关的性状的观察数据中推断出来。
更新日期:2021-10-08
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