Effect of egg size variation on survival rate, development and fecundity of offspring in a migrant skipper, Parnara guttata guttata (Lepidoptera: Hesperiidae)
Effect of egg size variation on survival rate, development and fecundity of offspring in a migrant skipper, Parnara guttata guttata (Lepidoptera: Hesperiidae)
复制标题
卵大小变化对迁徙船长 Parnara guttata guttata（鳞翅目：Hesperiidae）后代存活率、发育和繁殖力的影响
DOI：
10.1303/aez.2004.171
复制
发表时间：
2004
影响因子：
1.3
通讯作者：
F. Nakasuji
中科院分区：
文献类型：
--
作者：
T. Seko;F. Nakasuji
比较了大卵和小卵孵化的古塔塔古塔鱼的生活史特征。鸡蛋分为大于0.19 mm3 （L组）和小于0.16 mm3 （S组）两种大小。各组幼虫分别在25℃16L8D光周期下饲养。L组未成熟期存活率显著高于S组。虽然不显著，但L组在未成熟阶段的发育时间比S组短。值得注意的是，前者的蛹期明显缩短。L组雌成虫的繁殖力较高，但不显著。L组雌成虫产卵量明显大于S组。卵大小与其他性状之间的表型相关性通常可以忽略不计。而L组雌鱼的产卵量与产卵量呈显著负相关。这些结果表明，在固定条件下，卵的大小变化会影响子代的适合度。
Life history traits of Parnara guttata guttata hatched from large-sized and small-sized eggs were compared. Eggs were grouped into two sizes, larger than 0.19 mm3 (L group) and smaller than 0.16 mm3 (S group). Larvae from these groups were reared individually under a 16L8D photoperiod at 25°C. The survival rate in immature stages was significantly higher in the L group than the S group. Although not significant, the developmental time during immature stages of the L group was shorter than that of the S group. Notably, the pupal period was shortened significantly in the former group. The fecundity of female adults from the L group was higher, but not significantly so. Female adults in the L group laid significantly larger eggs than those in the S group. Phenotypic correlations between egg size and other traits were generally negligible. However, the correlation between the fecundity of females in the L group and the size of eggs they laid was significantly negative. These results suggest that egg size variation under fixed conditions affect fitness of offspring in P. g. guttata.