Rapid evolution of an introduced insect Ophraella communa LeSage in new environments: Temporal changes and geographical differences in photoperiodic response.
Rapid evolution of an introduced insect Ophraella communa LeSage in new environments: Temporal changes and geographical differences in photoperiodic response.
复制标题
引进昆虫 Ophraella communa LeSage 在新环境中的快速进化：光周期响应的时间变化和地理差异。
DOI：
10.1111/ens.12087
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发表时间：
2014
影响因子：
0.9
通讯作者：
A.
中科院分区：
文献类型：
--
作者：
Tanaka;K.;Murata;K.;Matsuura;A.
意外引入的甲虫Ophraella commun 于 1996 年在日本首次发现，并迅速扩大其分布范围，包括气候截然不同的地区。在范围扩大和随后在新栖息地建立的过程中，O. 的生活史特征。 社区根据新的栖息地环境条件而改变。在这项研究中，我们研究了 O 的光周期响应。 共同控制其生殖滞育，这是根据当地气候和寄主植物物候调整生命周期的重要特征。我们研究了这一特征的时间变化和地理差异。在O的筑波人口中。 communa 发现，12 小时光照：12 小时黑暗（LD 12:12）、13:11 和 14:10 条件下的滞育发生率在 2005 年至 2012 年期间并未持续增加或减少，尽管每年都有波动。然而，这一时期的滞育发生率低于之前报道的1999年，并且从1999年到2005年，诱导滞育的临界日长缩短了>1小时。这些结果表明O. 在此期间发生了公共转变。为了研究这一性状的地理差异，我们比较了弘前系、盛冈系、筑波系和越志系。 LD 13:11 时滞育发生率在 O 之间显着不同。 公社类：弘前线86.5%（2010年收集）、盛冈81.4%（2010年收集）、筑波45.0%（2011年收集）、合志7.1%（2009年收集），且与原产地纬度呈正相关。这些结果表明，这种性状发生了变化，以适应殖民地区的环境条件。
The accidentally introduced beetleOphraella communawas first found in 1996 in Japan and has rapidly expanded its distribution range to include regions with substantially different climates. During this range expansion and subsequent establishment in new habitats, the life history traits ofO. communahave changed depending on new habitat environmental conditions. In this study, we investigated the photoperiodic response ofO. communacontrolling its reproductive diapause, an important trait that adjusts the life cycle to local climate and phenology of host‐plants. We examined temporal changes and geographical differences in this trait. In the Tsukuba population ofO. communa, the diapause incidence under conditions of 12 h light : 12 h dark (LD 12:12), 13:11 and 14:10 did not consistently increase or decrease during 2005–2012, although it fluctuated yearly. The diapause incidence in this period, however, was lower than that in 1999 reported previously and the critical day‐length inducing diapause was shortened by >1 h from 1999 to 2005. These results suggest that the photoperiodic response ofO. communashifted during this period. To examine geographical differences in this trait, we compared the Hirosaki, Morioka, Tsukuba and Koshi lines. The diapause incidence at LD 13:11 was significantly different between theO. communalines: 86.5% in the Hirosaki line (collected in 2010) , 81.4% in Morioka (collected in 2010), 45.0% in Tsukuba (collected in 2011) and 7.1% in Koshi (collected in 2009), and was positively correlated with the latitude of the origin. These results suggest that this trait shifted, responding to the environmental conditions in the colonized regions.