. Author manuscript; available in PMC: 2012 Jun 18.

Published in final edited form as: J Comp Neurol. 2010 Oct 15;518(20):4182–4195. doi: 10.1002/cne.22447

Table 2.

Regularity of spacing of cone photoreceptor subtypes in zebrafish retina comparing various areas and developmental stages.

	Retinal Area
	Adult	Larvae	Larval Remnant in Adult
Conformity Ratio¹
U	10.6 ± 0.83 (4)^a	6.91 ± 0.40 (11)^a	4.39 ± 1.32 (4)^a
B	8.10 ± 1.19 (5)^a	5.19 ± 1.79 (6)^a	4.39 (1)^a
G	6.47 ± 0.73 (6)^a	5.19 ± 1.94 (4)^a	6.22 (1)^a
R	6.96 (1)^a	5.38 ± 1.67 (5)^a	2.52 ± 1.40 (2)^a,^e
U→B	4.04 ± 1.18 (5)^a	3.56 ± 0.78 (6)^5a,1c	3.28 ± 0.30 (2)^a,^d
B→U	3.23 ± 1.12 (5)^a	2.83 ± 0.62 (6)^3a,3d	1.93 ± 0.29 (2)^c,^d
U→G	3.05 ± 0.69 (4)^a	3.35 ± 0.75 (6)^5a,1e	4.48 (1)^a
B→R	4.40 (1)^a	3.22 ± 0.59 (5)^a	2.45 (1)^c
B→G	4.13 ± 0.72 (4)^a	3.97 ± 0.62 (6)^a	nd

Data presented as mean of conformity ratios for multiple samples and the standard deviation around this mean. Bracketed number represents the number of fish sampled. Conformity ratio is a measure of the regularity of cone spacing within each sample (Nearest-neighbour distance / Standard deviation) with higher ratios indicating more regularity. Where a single cone type is listed, homotypic conformity ratios are reported. Where two cone types are listed, the distance from each of the first cone subtype to the nearest neighbor of the second subtype was calculated. Cone names abbreviated U, B, G, & R refer to ultraviolet-, blue, green- & red-sensitive cones respectively. Nd, not determined.

Significant non-randomness of cone spacing towards regularity is indicated as

= <0.0001

= p<0.001

= p<0.01

= p<0.05

= p>0.05

(not significant). Where one superscript is listed, each individual fish met this significance criterion. Where multiple subscripts are listed this represents significance for different individual fish. Where a superscript is preceded by a number, this represents the number of fish in the treatment that reached this level of significance.