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Table 1 Divergence and GC content values for intronic sequences. Introns were divided into two classes based on their average intron length (232 bp): short introns, ≤232 bp; long introns, >232 bp. Divergence values (K i ) are means across introns (standard errors are in parenthesis). Results of Wilcoxon two-sample test (P) between short and long intron (in column) and first and non-first intron (in line) are shown.

From: Patterns of selective constraints in noncoding DNA of rice

Introns

Divergence

GC Content

 

All

Short intron

Long intron

P

All

Short intron

Long intron

P

All

 

0.089 (0.006)

0.050 (0.005)

0.033

 

0.347 (0.003)

0.352 (0.003)

0.264

First

0.079 (0.012)

0.110 (0.018)

0.037 (0.006)

0.001

0.394(0.007)

0.396 (0.010)

0.391 (0.009)

0.705

Non-first

0.078 (0.005)

0.086 (0.006)

0.055 (0.006)

0.259

0.340 (0.002)

0.339(0.003)

0.341 (0.003)

0.544

P

0.4579

0.050

0.291

 

0.000

0.000

0.000

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