Table 1 Traits mapped and measurements/calculations taken

From: Admixture mapping of quantitative traits in Populus hybrid zones: power and limitations

Trait

Description

Measurement/calculation

PETL

Petiole length

Raw measurement (mm)

LFAREA

Leaf area

Model baseda (mm2)

PTRAT

Petiole ratio

Petiole length/lamina length

PETXM

Petiole flatness at petiole middle

Petiole cross-section length/widthb at petiole middle

PETXB

Petiole flatness at petiole base

Petiole cross-section length/widthb at petiole base

PETXA

Petiole flatness at petiole apex

Petiole cross-section length/widthb at petiole apex

LFSHAP

Leaf shape

Lamina length/lamina width

LDRAT

Lobe depth

(Lobe width−sinus width)/lobe width

  1. For additional traits see Supplementary Table S2.
  2. aLeaf area=28.5966+0.6168 × lamina length^0.8326 × lamina width^1.2065; best fitting allometric model based on 1288 observations from Spanish hybrid zone.
  3. bThe raw measurements of the petiole cross-sections were taken in a way that length is always the larger value of length and width.
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