Table 2

Mean nucleotide diversity (π) is higher at S. cerevisiae centromeres (in CDEII) than in selectively unconstrained sequences (TEs)

Population

Strains

CDEII S

CDEII π

TE S

TE π

P value

CDEII:TE


Global

34

222

0.04

1715

0.01

9 × 10-11

3.6

European

11

29

0.006

133

0.001

2 × 10-10

4.8

Sake

3

27

0.01

32

0.005

6 × 10-6

2.6

Malaysian

3

1

0.0005

0

0

0.02

n/a

Oak

2

0

0

0

0

n/a

n/a

West African

2

0

0

0

0

n/a

n/a


Nucleotide diversity of CDEII (π) was estimated across the CDEII component of all 16 centromeres and π for TEs was estimated for the 210 loci at which TEs appeared fixed. P values are the result of Wilcoxon tests comparing 16 estimates of π of CDEII to 210 estimates of π of TEs for each population.

Bensasson BMC Evolutionary Biology 2011 11:211   doi:10.1186/1471-2148-11-211

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