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Table 2 Tandem duplication of nAChR genes in C. gigas and P. f. martensii

From: Massive expansion and diversity of nicotinic acetylcholine receptors in lophotrochozoans

Species Type No. of Arrays No. of Genes
C. gigas 2-gene array 16 32
3-gene array 5 15
4-gene array 1 4
6-gene array 1 6
7-gene array 1 7
8-gene array 1 8
total 25 72 (54.5%)
P. f. martensii 2-gene array 18 36
3-gene array 11 33
4-gene array 3 12
5-gene array 2 10
6-gene array 3 18
7-gene array 1 7
12-gene array 2 24
total 40 140 (65.0%)