Relationships between reproductive character displacement in genital morphology and the population-level cost of interspecific mating: implications for the Templeton effect
Relationships between reproductive character displacement in genital morphology and the population-level cost of interspecific mating: implications for the Templeton effect
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生殖器形态中的生殖特征位移与种间交配的群体水平成本之间的关系：对坦普尔顿效应的影响
DOI：
10.1093/biolinnean/blac126
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发表时间：
2022
影响因子：
1.9
通讯作者：
Takami Yasuoki
中科院分区：
文献类型：
--
作者：
Nishimura Taira;Terada Karen;Xia Tian;Takami Yasuoki
针对适应性不良的种间生殖相互作用的自然选择可能会导致一对物种中同域种群之间的交配特征比异地种群之间的交配特征更大的差异，这被称为生殖特征置换(RCD)，这是生殖器进化的锁和钥匙假说的证据。然而，对生殖器形态中的RCD作出贡献的各种过程(例如强化、生殖干扰和人口过滤或邓普顿效应)的相对重要性尚不清楚。在这里，我们检查了生殖器形态中RCD的假设，特别关注Templeton效应(该效应预测只有高度分化的种群才能在共生中存在)。我们研究了种群水平的适合度成本在种间交配的Carabus maiyasanus和Carabus iwakianus与RCD生殖器形态。一项利用生殖器形态中具有不同程度RCD的种群进行的交配实验表明，没有证据表明物种间交配成本持续较低。与邓普顿效应的预测相反，在生殖器官形态上接触移位的迈雅逊人群体比偏远群体中的人更多。或者，种间交配的成本因种群而异。观察到与隔离有关的生殖器部分的大小与种群间交配成本之间的关系表明，在导致RCD的过程中，种群一级的健康成本不一定下降。我们的结果提供了对密切相关物种在二次接触期间的生态和进化过程的洞察。
Natural selection against maladaptive interspecific reproductive interactions may cause greater divergence in mating traits between sympatric populations than between allopatric populations in a pair of species, known as reproductive character displacement (RCD) which is evidence for the lock-and-key hypothesis of genital evolution. However, the relative importance of various processes contributing to RCD in genital morphology (e.g. reinforcement, reproductive interference, and population filtering or the Templeton effect) is not clear. Here, we examined hypotheses for RCD in genital morphology, with a special focus on the Templeton effect (which predicts that only highly differentiated populations can exist in sympatry). We examined population-level fitness costs in interspecific mating betweenCarabus maiyasanusandCarabus iwawakianuswith RCD in genital morphology. A mating experiment using populations with various degrees of RCD in genital morphology showed no evidence for consistently lower interspecific mating costs inC. maiyasanuspopulations in contact with displacement in genital morphology than in remote populations, contrary to the predictions of the Templeton effect. Alternatively, interspecific mating costs varied among populations. Observed relationships between the sizes of genital parts concerning isolation and interspecific mating costs across populations suggested that population-level fitness costs do not necessarily decrease during the process leading to RCD. Our results provide insight into ecological and evolutionary processes during secondary contact in closely related species.
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影响因子：
2.6
作者：
Langerhans, R. Brian;Anderson, Christopher M.;Heinen-Kay, Justa L.
通讯作者：
Heinen-Kay, Justa L.
影响因子：
5
作者：
Hollander, Johan;Montano-Rendon, Mauricio;Butlin, Roger K.
通讯作者：
Butlin, Roger K.
影响因子：
1.7
作者：
Sota, T;Takami, Y;Ishikawa, R
通讯作者：
Ishikawa, R
Carabus (Ohomopterus) maiyasanus 和 C. (O.) iwawakianus（鞘翅目，步甲科）之间的自然杂交
DOI：
--
发表时间：
1988
期刊：
--
影响因子：
--
作者：
K. Kubota
通讯作者：
K. Kubota
影响因子：
3.3
作者：
Anderson, Christopher M.;Langerhans, R. Brian
通讯作者：
Langerhans, R. Brian