Analysis of sequence variability in the macronuclear DNA of Paramecium tetraurelia: A somatic view of the germline

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Table 1.

Bias in size and sequence of TA-indels and IESs

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Table 1.

For the calculation of χ2, the observed frequency (in parentheses) is compared to the expected frequency under the null hypothesis of a random distribution of TA-indel size (i.e., 1/3 of 3 n TA-indels and 2/3 of non-3 n TA-indels). NB, by definition, low-frequency TA-indels that are located within coding regions cannot contain in-frame stop codons. (NS) Not significant.

aTA-indels located within coding regions that do not contain a TGA triplet in frame with the upstream coding region.

bThe 42 experimentally determined P. tetraurelia IESs (Gratias and Bétermier 2001) are all located in coding regions.

cTA-indels located within coding regions that contain at least one TGA triplet in frame with the upstream coding region.

This Article

  1. Published in Advance February 6, 2008, doi: 10.1101/gr.074534.107 Genome Res. 18: 585-596

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