Genetically based trait coordination and phenotypic plasticity of growth, gas exchange, allometry, and hydraulics across the distribution range of Pinus pinaster

被引：0

作者：

Ramirez-Valiente, Jose Alberto ^{[1
]}

Gonzalez-Martinez, Santiago C. ^{[2
]}

Robledo-Arnuncio, Juan Jose ^{[1
]}

Matesanz, Silvia ^{[3
,4
]}

Anadon-Rosell, Alba ^{[5
]}

Martinez-Vilalta, Jordi ^{[5
,6
]}

Lopez, Rosana ^{[7
]}

Cano-Martin, Francisco Javier ^{[1
,8
]}

机构：

[1] CSIC, Inst Ciencias Forestales ICIFOR INIA, Ctra Coruna Km 7-5, Madrid 28040, Spain

[2] Univ Bordeaux, INRAE, BIOGECO, 69 Route Arcachon, F-33610 Cestas, France

[3] Univ Rey Juan Carlos, Area Biodivers & Conservac, C Tulipan S-N, Mostoles 28933, Spain

[4] Univ Rey Juan Carlos, Inst Invest Cambio Global IICG URJC, C Tulipan S-N, Mostoles 28933, Spain

[5] CREAF, Campus Bellaterra, Cerdanyola Del Valles 08193, Spain

[6] Univ Autonoma Barcelona, Cerdanyola Del Valles 08193, Spain

[7] Univ Politecn Madrid, Escuela Tecn Super Ingn Montes, Dept Sistemas & Recursos Nat, Forestal & Medio Nat, Madrid 28040, Spain

[8] Western Sydney Univ, Hawkesbury Inst Environm, Locked Bag 1797, Penrith, NSW 2751, Australia

来源：

NEW PHYTOLOGIST | 2025年

关键词：

covariation; drought; intraspecific variation; local adaptation; phenotypic integration; phenotypic plasticity; Pinus pinaster; trade-off; ECONOMICS SPECTRUM; POPULATION DIFFERENTIATION; FUNCTIONAL TRAITS; LEAF; ADJUSTMENT; RESISTANCE; EVOLUTION; ARCHITECTURE; PROVENANCES; ENVIRONMENT;

D O I：

10.1111/nph.70055

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Studying intraspecific trait variation across environments is key for understanding how resource-use strategies evolve. It is hypothesized that plants from mesic environments have evolved toward a more acquisitive strategy with high growth potential and phenotypic plasticity, while populations from xeric continental climates exhibit a conservative strategy with slower growth and better physiological performance under drier conditions. We tested this hypothesis through the phenotypical characterization of 14-yr-old Pinus pinaster Aiton trees from 20 range-wide populations growing in two climatically contrasting common gardens. We measured 20 traits related to growth, leaf morphology, gas exchange, photochemistry, and hydraulics. Consistent with our hypothesis, we found that populations from mesic oceanic areas exhibited higher growth rates and higher allocation to leaf surface area under mesic conditions, along with greater plasticity in these traits. By contrast, xeric continental populations had better physiological status, showing higher gas exchange rates and photochemical efficiency, but lower sapwood-specific hydraulic conductivity under drier conditions. Together, our results provide evidence that climate drives the joint evolution of leaf and stem traits and their plasticity following an acquisitive-conservative axis of resource use. Overall, trait coordination is found to be highly plastic, likely to maximize plant performance under contrasting environmental conditions.

引用

页数：17