Remote sensing of ploidy level in quaking aspen (Populus tremuloides Michx.)

被引:21
|
作者
Blonder, Benjamin [1 ,2 ,3 ,4 ]
Graae, Bente J. [2 ]
Greer, Burke [3 ]
Haagsma, Marja [5 ,6 ]
Helsen, Kenny [2 ,7 ]
Kapas, Rozalia E. [2 ,3 ,8 ]
Pai, Henry [9 ,10 ]
Rieksta, Jolanta [2 ,3 ,13 ]
Sapena, Dillon [3 ,11 ]
Still, Christopher J. [3 ,12 ]
Strimbeck, Richard [2 ,3 ]
机构
[1] Univ Oxford, Sch Geog & Environm, Environm Change Inst, Oxford, England
[2] Norwegian Univ Sci & Technol NTNU, Dept Biol, Trondheim, Norway
[3] Rocky Mt Biol Labs, Crested Butte, CO 81224 USA
[4] Arizona State Univ, Sch Life Sci, Tempe, AZ 85281 USA
[5] Oregon State Univ, Dept Biol & Ecol Engn, Corvallis, OR 97331 USA
[6] Oregon State Univ, Water Resources Engn Grad Program, Corvallis, OR 97331 USA
[7] Univ Leuven, Biol Dept, Plant Conservat & Populat Biol, Heverlee, Belgium
[8] Stockholm Univ, Dept Phys Geog, Stockholm, Sweden
[9] Univ Nevada, Dept Geol Sci & Engn, Reno, NV 89557 USA
[10] NOAA, Northwest River Forecast Ctr, Portland, OR USA
[11] Montana State Univ, Dept Ecol, Bozeman, MT 59717 USA
[12] Oregon State Univ, Dept Forest Ecosyst & Soc, Corvallis, OR 97331 USA
[13] Univ Copenhagen, Dept Biol, Terr Ecol Sect, Univ Pk 15, DK-2100 Copenhagen, Denmark
基金
美国国家科学基金会; 英国自然环境研究理事会;
关键词
adaptation; ploidy level; polyploidy; quaking aspen; reflectance; remote sensing; spectrometry; UAS; IMAGING SPECTROSCOPY; SPECTRAL REFLECTANCE; GENETIC-VARIATION; GENOME SIZE; POLYPLOIDY; MORTALITY; FOREST; LEAF; DROUGHT; CLIMATE;
D O I
10.1111/1365-2745.13296
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Ploidy level in plants may influence ecological functioning, demography and response to climate change. However, measuring ploidy level typically requires intensive cell or molecular methods. We map ploidy level variation in quaking aspen, a dominant North American tree species that can be diploid or triploid and that grows in spatially extensive clones. We identify the predictors and spatial scale of ploidy level variation using a combination of genetic and ground-based and airborne remote sensing methods. We show that ground-based leaf spectra and airborne canopy spectra can both classify aspen by ploidy level with a precision-recall harmonic mean of 0.75-0.95 and Cohen's kappa of c. 0.6-0.9. Ground-based bark spectra cannot classify ploidy level better than chance. We also found that diploids are more common on higher elevation and steeper sites in a network of forest plots in Colorado, and that ploidy level distribution varies at subkilometer spatial scales. Synthesis. Our proof-of-concept study shows that remote sensing of ploidy level could become feasible in this tree species. Mapping ploidy level across landscapes could provide insights into the genetic basis of species' responses to climate change.
引用
收藏
页码:175 / 188
页数:14
相关论文
共 50 条