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Table 1 Results for age estimates and biogeographical optimizations with Tropical Asia (A), Temperate Aisa (B), Australia (C) Americas (D) and Africa (E) for the nodes of interest in the Oryzeae

From: Range expansion and habitat shift triggered elevated diversification of the rice genus (Oryza, Poaceae) during the Pleistocene

Analysis

Divergence-time estimate (Ma)

Biogeographical inference

Stem age of Oryzeae

Constrained (66)

Constrained (34.5)

S-DIVA

 

Lagrange

 

Results for discussed nodes

Age (95 % HPD)

Age (95 % HPD)

Ancestral areas

Rel. Prob.

split

Rel. prob.

1 – Crown group of Oryzeae

39.11 (34.23–44.89)

20.34 (17.37–23.35)

–

–

–

–

2 – Crown group of Oryza

20.40 (18.11–24.83)

11.10 (9.36–12.98)

A

1.0

A|A

0.50

3 – A-/B-/C-genomes vs. E-genome

10.15 (8.33–12.10)

5.27 (4.31–6.35)

AC

1.0

C|A

0.18

4 – A-/B-genomes vs. C-genome

7.05 (5.80–8.52)

3.68 (2.96–4.44)

A

1.0

A|A

0.25

5 – Migration into South America

2.17 (1.49–2.95)

1.12 (0.79–1.51)

AE

1.0

AD|E

0.34

6 – Migration into Africa

0.81 (0.43–1.24)

0.42 (0.23–0.65)

AD

1.0

D|BA

0.63

7 – A-genome vs. B-genome

6.03 (4.86–7.30)

3.15 (2.51–3.86)

A

0.84

A|A

0.46

   

AD

0.14

  

8 – Migration into Africa

0.86 (0.49–1.29)

0.46 (0.26–0.70)

AD

1.0

D|A

0.96

9 – Crown group of A-genome

1.91 (1.26–3.14)

1.03 (0.67–1.68)

AE

0.34

A|CDE

0.40

   

AD

0.33

  
   

AC

0.29

  

10 – Migration into Africa

0.80 (0.21–1.51)

0.43 (0.09–0.86)

AD

1.0

D|A

0.97

11 – Migration into Africa,

1.14 (0.27–1.91)

0.62 (0.15–1.06)

DE

0.41

E|CD

0.71

Australia, and Americas

  

CE

0.40

  
   

CD

0.18

  

12 – Migration into Australia

2.71 (1.85–3.74)

1.37 (0.93–1.91)

AC

1.0

C|A

0.90

13 – Migration into Africa

15.02 (12.15–17.70)

7.76 (6.31–9.29)

AD

1.0

A|A

0.50

  1. The node numbers correspond to those in Fig. 1. HPD = highest posterior density intervals; Rel. prob. = relative probability