Polygene control and trait dominance in death-feigning syndrome in the red flour beetle Tribolium castaneum
Polygene control and trait dominance in death-feigning syndrome in the red flour beetle Tribolium castaneum
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赤拟谷盗假死综合征的多基因控制和性状显性
DOI：
10.1007/s10519-022-10108-9
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发表时间：
2022
影响因子：
2.6
通讯作者：
Miyatake Takahisa
中科院分区：
文献类型：
--
作者：
Matsumura Kentarou;Miyatake Takahisa
假死行为是一种在几种动物分类群中使用的反捕食技术，通常与抑制运动（即，假死综合征）。我们进行了一个相互交叉菌株表现出遗传上较长的（L-株）和较短的（S-株）死亡假装的持续时间。在此基础上，对F1和F2群体的相关遗传因素进行了研究。我们还评估了运动活动，这是负面的反应，以人工选择的死亡假装在赤拟谷盗。我们的研究结果表明，假死发生更频繁，更短的时间在F1人口。而F2代群体中，假死和移动行为表现出持续分离。虽然各性状值在F2代的分布与亲本不同，但F2代没有出现超越亲本性状值分布的个体。此外，对F1和F2代假死和移动的卡方分析也否定了单基因遗传的假说。这些结果表明，假死综合征是多基因控制，表明交互杂交实验在评估行为性状的数量遗传的有用性。
Death-feigning behavior is an anti-predatory technique used in several animal taxa and often correlates with inhibited movements (i.e., death-feigning syndrome). We performed a reciprocal crossing among strains exhibiting a genetically longer (L-strain) and shorter (S-strain) duration of death feigning. Then, we investigated related heritable factors in F1and F2populations. We also evaluated movement activities, which negatively responded to artificial selection for death feigning inT. castaneum. Our results indicated that death feigning occurred more frequently and for shorter periods in the F1population. However, in the F2population, death feigning and movement exhibited continuous segregation. Although the distribution of each trait value in the F2generation differed from that of the parental generation, no individuals transgressing the distribution of trait values in the parental generation emerged from the F2generation. Besides, chi-square analysis of the observed death feigning and movement of F1and F2progenies rejected the hypothesis of mono-major gene inheritance. These results suggested that the death-feigning syndrome was polygenically controlled, indicating the usefulness of reciprocal crossing experiments in assessing the quantitative inheritance of behavioral traits.
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发表时间：
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