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Table 2 Estimated demographic parameters for the population pairs assuming isolation with migration

From: Range shift and introgression of the rear and leading populations in two ecologically distinct Rubusspecies

 

Model

      
 

pop1, 2

t

θ 1

θ 2

θ A

2NM1 <2

2NM1>2

Within R. palmatus

 

pYK, pKD

0.086 (0.025-0.318)

15.1 (2.6-16.9)

7.6 (2.6-16.9)

51.7 (22.9-98.5)

0.003 (0.0-0.010)

0.001 (0.0-0.006)

 

pYK, pEB

0.110 (0.05-0.21)

17.5 (8.4-31.1)

27.5 (14.8-46.1)

59.8 (34.8-96.1)

0.000 (0.0-0.035)

0.000 (0.0-0.073)

 

pEB, pKB

0.058 (0.016-0.145)

30.2 (13.6-58.3)

6.7 (2.1-16.8)

40.7 (22.8-68.0)

0.005 (0.0-0.022)

0.000 (0.0-0.006)

 

pBS, pKG

0.017 (0.0-0.064)

8.1 (2.1-39.4)

28.8 (13.1-40.3)

22.8 (9.4-43.1)

0.000 (0.0-0.011)

0.000 (0.0-0.112)

 

pEB, pKG

0.098 (0.042-0.189)

36.2 (20.0-62.4)

41.2 (19.1-86.4)

38.9 (20.9-63.8)

0.010 (0.0-0.024)

0.010 (0.0-0.032)

Within R. grayanus

 

gOK, gAM

0.038 (0.015-0.088)

9.9(3.2-24.9)

11.8 (4.9-25.7)

13.6 (5.9-27.2)

0.001 (0.0-0.100)

0.002 (0.0-0.010)

 

gOK, gYK

0.040 (0.017-0.11)

7.3 (2.0-20.0)

10.8 (3.4-22.7)

18.4 (6.3-38.2)

0.001 (0.0-0.007)

0.001 (0.0-0.008)

 

gOK, gTN

0.022 (0.005-0.062)

8.0 (1.6-30.1)

13.4 (2.0-134.3)

6.4 (1.8-14.9)

0.000 (0.0-0.011)

0.000 (0.0-0.043)

 

gAM, gYK

0.015 (0.006-0.065)

4.8 (1.5-13.5)

9.8 (2.7-26.5)

22.3 (9.4-40.2)

0.000 (0.0-0.013)

0.000 (0.0-0.025)

 

gAM, gTN

0.016 (0.005-0.061)

9.9 (1.9-32.1)

7.3 (0.5-56.3)

13.5 (4.5-26.6)

0.000 (0.0-0.011)

0.000 (0.0-0.017)

 

gYK, gTN

0.008 (0.0-0.045)

5.5 (0.7-20.5)

2.2 (0.3-11.7)

13.6 (5.5-29.9)

0.000 (0.0-0.008)

0.000 (0.0-0.004)

Between species

 

pEB, gYK

0.870 (0.439-1.466)

37.9 (25.2-55.7)

17.0 (9.3-28.4)

24.8 (0.0-103.4)

0.009 (0.0-0.022)

0.007* (0.001-0.013)

 

pKD, gYK

0.861 (0.425-1.470)

12.9 (6.1-23.4)

17.0 (9.3-27.9)

2.9 (0.0-133.8)

0.000 (0.0-0.008)

0.000 (0.0-0.010)

 

pYK, gYK

1.07 (0.27-2.22)

17.5 (8.6-29.9)

16.9 (8.6-29.3)

0.9 (0 - 170.3)

0.022*** (0.005-0.057)

0.005** (0.0003-0.026)

 

pEB, gTN

1.043 (0.549-1.625)

47.5 (32.0-67.0)

16.1 (7.9-27.9)

0.068 (0.0-112.0)

0.000 (0.0-0.026)

0.006** (0.001-0.012)

 

pKD, gTN

0.961 (0.398-1.884)

16.6 (8.0-28.4)

17.0 (8.4-28.9)

47.0 (0.0-192.5)

0.000 (0.0-0.010)

0.000 (0.0-0.011)

 

pYK, gTN

0.925 (0.389-4.54)

17.0 (9.3-27.9)

15.7 (7.5-26.6)

69.8 (0.0-355.2)

0.010*** (0.005-0.016)

0.005 (0.0-0.011)

 

pEB, gAM

0.99 (0.44-1.67)

45.1 (29.0-66.4)

15.8 (7.7-27.9)

34.2 (0-123.1)

0.000 (0-0.041)

0.000 (0-0.019)

  1. Highest probability densities (HPD) and 95% HPD in parentheses of demographic parameters, in isolation with migration models of two species populations (pop1 and pop2): divergence time in million years ago (t) of two focal populations, population size in thousands in population1 (θ 1 ), population 2 (θ 2 ), ancestral population (θ A ), and migration rate from population 2 to 1 (2NM1<2) and from population 1 to 2 (2NM1>2).
  2. Migration rates (2NM) were tested by likelihood ratio tests (Nielsen and Wakeley, 2001); *p < 0.05, **p < 0.01, ***p < 0.001.