Van der heyden C, Wautier K, Huysseune A
Department of Biology, Ghent University, K.L. Ledeganckstraat 35, B-9000, Gent, Belgium.
Arch Oral Biol. 2001 Nov;46(11):1051-8. doi: 10.1016/s0003-9969(01)00064-4.
To test whether the formation of replacement teeth in arbitrarily chosen zebrafish follows the same pattern as described for larval and young zebrafish of known age, dentitions of more than 90 animals of different ages and standard lengths were observed under the stereomicroscope. Only the teeth of the ventral tooth row (1V-5V) were considered. Statistical results (G-tests) suggested that tooth replacement does not occur randomly. The most common order of replacement can be represented as the formula 5V-2V-3V-1V-4V and counts for approximately 70% of the observed patterns. Initiation of replacement teeth at positions 4V and 5V is separated by a larger time interval than between any other combination. It is hypothesized that in older juveniles and adults, replacement teeth may be formed during three odontogenic waves.
为了测试在任意选择的斑马鱼中替换牙的形成是否遵循与已知年龄的幼体和幼龄斑马鱼所描述的相同模式，在体视显微镜下观察了90多只不同年龄和标准长度动物的牙列。仅考虑腹侧牙列（1V - 5V）的牙齿。统计结果（G检验）表明牙齿替换并非随机发生。最常见的替换顺序可以用公式5V - 2V - 3V - 1V - 4V表示，约占观察到模式的70%。4V和5V位置替换牙的起始间隔时间比其他任何组合之间的间隔时间都长。据推测，在年龄较大的幼鱼和成鱼中，替换牙可能在三个牙发生波期间形成。
