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Table 4 Analysis of multi-species gene families in Cucurbitaceae

From: Extreme expansion of NBS-encoding genes in Rosaceae

Type of gene family

Average number of members

Number of gene family

Number of genes

Members of largest family

Average nucleotide divergence

Ave_ Ka/Ks

PAML (* + **|All)

C

M

W

CM

1.2

1.3

-

11

27

4

0.424

0.548

4|4

CW

1.0

-

1.0

1

2

2

0.231

0.414

-

MW

-

1.0

1.0

1

2

2

0.148

0.295

-

CMW

1.6

2.1

1.5

19

99

18

0.189

0.397

5|10

  1. C: Cucumber; M: Melon; W: Watermelon.
  2. *P < 0.01; **P <0.05.