High Correlated Paternity Leads to Negative Effects on Progeny Performance in Two Mediterranean Shrub Species.
High Correlated Paternity Leads to Negative Effects on Progeny Performance in Two Mediterranean Shrub Species.
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DOI：
10.1371/journal.pone.0166023
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发表时间：
2016
期刊：
影响因子：
3.7
通讯作者：
Albaladejo RG
中科院分区：
文献类型：
--
作者：
Nora S;Aparicio A;Albaladejo RG
人为生境的恶化可以促进植物交配系统的变化，随后可能会影响后代的表现，从而调节植物下一代的招聘。然而，很少有研究还测试交配系统参数以外的异交率，和直接影响的遗传多样性的花粉收到的母本植物（即相关的父系）往往被忽视。在这项研究中，我们调查了两个常见的地中海灌木，桃金娘和阿月浑子lentiscus相关的父系和后代的表现之间的关系。要做到这一点，我们收集了自由授粉的后代从选定的母本植物，计算交配系统参数使用微卫星基因分型和温室和田间条件下进行播种实验。研究结果表明，母本植株的高相关父本性对子代适合度组分有负面影响。在桃金娘中，高相关亲子关系对自然田间条件下和温室播种试验中的出苗比例和出苗时间分别产生了负面影响。在阿月浑子lentiscus，出苗时间在田间条件下也受到负面影响，高相关的父亲和后代的生存分析在田间试验中表现出更大的死亡率从母本植物与高相关的父亲。总的来说，我们发现的影响，相关的父系的后代的表现桃金娘，一个自我兼容的物种。此外，我们还检测了相关亲子关系对阿月浑子（一种专性异交种）后代出现时间和存活率的影响。这项研究是为数不多的现有的经验的例子之一，突出的影响，相关的亲子关系可能会对后代的表现在多个阶段，在早期幼苗生长。
Anthropogenic habitat deterioration can promote changes in plant mating systems that subsequently may affect progeny performance, thereby conditioning plant recruitment for the next generation. However, very few studies yet tested mating system parameters other than outcrossing rates; and the direct effects of the genetic diversity of the pollen received by maternal plants (i.e. correlated paternity) has often been overlooked. In this study, we investigated the relation between correlated paternity and progeny performance in two common Mediterranean shrubs, Myrtus communis and Pistacia lentiscus. To do so, we collected open-pollinated progeny from selected maternal plants, calculated mating system parameters using microsatellite genotyping and conducted sowing experiments under greenhouse and field conditions. Our results showed that some progeny fitness components were negatively affected by the high correlated paternity of maternal plants. In Myrtus communis, high correlated paternity had a negative effect on the proportion and timing of seedling emergence in the natural field conditions and in the greenhouse sowing experiment, respectively. In Pistacia lentiscus, seedling emergence time under field conditions was also negatively influenced by high correlated paternity and a progeny survival analysis in the field experiment showed greater mortality of seedlings from maternal plants with high correlated paternity. Overall, we found effects of correlated paternity on the progeny performance of Myrtus communis, a self-compatible species. Further, we also detected effects of correlated paternity on the progeny emergence time and survival in Pistacia lentiscus, an obligate outcrossed species. This study represents one of the few existing empirical examples which highlight the influence that correlated paternity may exert on progeny performance in multiple stages during early seedling growth.
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