Table 3

Response to metals

Up in males

Up in females

No change between sexes


Responsive to cadmium and/or arsenic

45% (85/188)

42% (25/59)

49% (47/96)

46% (157/343)

No change in both metals

48% (95/197)

12% (13/112)

33% (44/135)

34% (152/444)


47% (180/385)

22% (38/171)

39% (91/231)

39% (309/787)

The percentage of Daphnia pulex assembled EST sequences with no matches to insect proteins, partitioned by their differential expression patterns in experiments designed to detect transcriptional differences between the sexes (Eads et al. submitted) and genes responding to toxic metal exposure to cadmium and arsenic (Shaw et al. submitted, and in prep). A 5% false discovery rate is applied to all three experimental results. The number of orphan genes over the total number of genes within the partition is indicated in parentheses.

Colbourne et al. BMC Genomics 2007 8:217   doi:10.1186/1471-2164-8-217

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