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首页> 外文期刊>Journal of Fish Biology >Reduced swimming abilities in fast-growing transgenic common carp Cyprinus carpio associated with their morphological variations
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Reduced swimming abilities in fast-growing transgenic common carp Cyprinus carpio associated with their morphological variations

机译：快速生长的转基因鲤鱼的鲤鱼游泳能力及其形态变异

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摘要

Critical swimming speeds (U-crit) and morphological characters were compared between the F-4 generation of GH-transgenic common carp Cyprinus carpio and the non-transgenic controls. Transgenic fish displayed a mean absolute U-crit value 22.3% lower than the controls. Principal component analysis identified variations in body shape, with transgenic fish having significantly deeper head, longer caudal length of the dorsal region, longer standard length (L-S) and shallower body and caudal region, and shorter caudal length of the ventral region. Swimming speeds were related to the combination of deeper body and caudal region, longer caudal length of the ventral region, shallower head depth, shorter caudal length of dorsal region and L-S. These findings suggest that morphological variations which are poorly suited to produce maximum thrust and minimum drag in GH-transgenic C. carpio may be responsible for their lower swimming abilities in comparison with non-transgenic controls.
机译：比较了F-4代GH转基因鲤鱼Cyprinus carpio和非转基因对照组的临界游泳速度（U-crit）和形态特征。转基因鱼的平均绝对U-临界值比对照组低22.3％。主成分分析确定了体形的变化，其中转基因鱼的头明显更深，背侧区域的尾端长度更长，标准长度（L-S）更长，身体和尾端区域更浅，腹侧区域的尾端长度更短。游泳速度与较深的身体和尾部区域，较长的腹侧尾部长度，较浅的头部深度，较短的背侧尾部长度和L-S有关。这些发现表明，与非转基因对照相比，不适合在GH-转基因鲤鱼中产生最大推力和最小阻力的形态学变异可能是其游泳能力较低的原因。

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