Table 2 Results of experimental crosses

From: Wolbachia plays no role in the one-way reproductive incompatibility between the hybridizing field crickets Gryllus firmus and G. pennsylvanicus

 

Cross type

Fertility exp?

Mean eggs

s.d. eggs

Mean offsprings

s.d. offsprings

(n) total

(n) fecund

(n) fertile

Conspecific

C/uu

Yes

468.8

159.2

80.2

56.4

11

11

11

 

C/tu

Yes

369.4

199.1

69.4

76.5

11

11

8

 

C/tt

Yes

293.2

319.1

42.6

58.4

5

5

2

 

C/ut

No

250.2

176.4

69.2

92.6

5

5

3

Heterospecific

H/uu

No

86.2

115.2

0.06a

0.25

16

15

1

 

H/tu

Yes

64.4

78.1

0

0

18

16

0

 

H/tt

Yes

66.5

77.3

0

0

8

8

0

 

H/ut

No

46.4

93.5

0

0

10

8

0

  1. aOne hybrid offspring was produced in this cross type. Both parents were infected (RT-PCR and RFLP results).
  2. ‘Fertility exp?’ indicates whether fertility is expected under the Wolbachia hypothesis. Results are fecundity (mean eggs and standard deviation), fertility (mean number of offspring and standard deviation), total number of females in each cross type (n total), number of fecund females (n fecund) and number of fertile females (n fertile). For cross-type abbreviations, see Materials and methods.
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