Climate lags and genetics determine phenology in quaking aspen (Populus tremuloides).

Autor:	Blonder BW; Department of Environmental Science, Policy, and Management, University of California - Berkeley, Berkeley, CA, 94720, USA.; Rocky Mountain Biological Laboratory, Crested Butte, CO, 81224, USA., Brodrick PG; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, 91109, USA., Chadwick KD; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, 91109, USA., Carroll E; Department of Environmental Science, Policy, and Management, University of California - Berkeley, Berkeley, CA, 94720, USA.; Rocky Mountain Biological Laboratory, Crested Butte, CO, 81224, USA., Cruz-de Hoyos RM; Department of Environmental Science, Policy, and Management, University of California - Berkeley, Berkeley, CA, 94720, USA.; Rocky Mountain Biological Laboratory, Crested Butte, CO, 81224, USA., Expósito-Alonso M; Department of Plant Biology, Carnegie Institution for Science, Stanford, CA, 94305, USA., Hateley S; Department of Plant Biology, Carnegie Institution for Science, Stanford, CA, 94305, USA., Moon M; Department of Earth & Environment, Boston University, Boston, MA, 02215, USA., Ray CA; Department of Environmental Science, Policy, and Management, University of California - Berkeley, Berkeley, CA, 94720, USA.; Rocky Mountain Biological Laboratory, Crested Butte, CO, 81224, USA., Tran H; Department of Civil and Environmental Engineering, Princeton University, Princeton, NJ, 08540, USA.; Atmospheric Sciences & Global Change Division, Pacific Northwest National Laboratory, Richland, WA, 99354, USA., Walton JA; Molecular Ecology Laboratory, Department of Wildland Resources, Utah State University, Logan, UT, 84322, USA.
Jazyk:	angličtina
Zdroj:	The New phytologist [New Phytol] 2023 Jun; Vol. 238 (6), pp. 2313-2328. Date of Electronic Publication: 2023 Mar 20.
DOI:	10.1111/nph.18850
Abstrakt:	Spatiotemporal patterns of phenology may be affected by mosaics of environmental and genetic variation. Environmental drivers may have temporally lagged impacts, but patterns and mechanisms remain poorly known. We combine multiple genomic, remotely sensed, and physically modeled datasets to determine the spatiotemporal patterns and drivers of canopy phenology in quaking aspen, a widespread clonal dioecious tree species with diploid and triploid cytotypes. We show that over 391 km 2 of southwestern Colorado: greenup date, greendown date, and growing season length vary by weeks and differ across sexes, cytotypes, and genotypes; phenology has high phenotypic plasticity and heritabilities of 31-61% (interquartile range); and snowmelt date, soil moisture, and air temperature predict phenology, at temporal lags of up to 3 yr. Our study shows that lagged environmental effects are needed to explain phenological variation and that the effect of cytotype on phenology is obscured by its correlation with topography. Phenological patterns are consistent with responses to multiyear accumulation of carbon deficit or hydraulic damage. (© 2023 The Authors New Phytologist © 2023 New Phytologist Foundation.)
Databáze:	MEDLINE
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