Table 1.
Thickness in each component layer and the numbers of outer nuclear layer of retina in diploid and induced triploid marine medaka, Oryzias dancena*

	Diploid	Induced triploid	Ratios of means
Thickness of retina (µm)	110.9±2.15a	97.7±2.50b	0.88
Thickness of each layer of retina (%)
Epithelial layer	22.5±0.89a	22.6±1.52a	1.01
Rod and cone layer	11.9±0.85a	12.9±0.95b	1.08
Outer limiting membrane	4.5±0.40a	5.5±0.32b	1.22
Outer nuclear layer	12.3±0.43a	12.0±0.98a	0.98
Outer plexiform layer	4.1±0.21a	4.4±0.58b	1.07
Inner nuclear layer	13.1±0.44a	16.0±0.21b	1.22
Inner plexiform layer	23.0±0.42a	23.2±0.22a	1.01
Ganglion cell layer	4.9±0.14a	5.8±0.46b	1.19
Optic nerve fiber layer	5.7±0.56a	6.4±1.03b	1.12
Number of outer layer cellnucleus	3a	2b

Each values are the means standard deviation of triplicated groups. Means in rows with the different superscript letter are significantly different (P < 0.05), Ratios of means = induced triploid/diploid.