Intraspecific variation in life history traits of Viola brevistipulata (Violaceae) in Hokkaido.
Intraspecific variation in life history traits of Viola brevistipulata (Violaceae) in Hokkaido.
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北海道紫花地丁（堇菜科）生活史性状的种内变异。
DOI：
10.1111/j.1442-1984.2012.00390.x
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发表时间：
2014
影响因子：
1.4
通讯作者：
Ohara Masashi
中科院分区：
文献类型：
--
作者：
Hayamizu Masato;Hosokawa Ichijitsu;Kimura Osamu;Ohara Masashi
通过对裂花受精（CH）和闭花受精（CL）花的定量和定性监测，研究了短托叶堇菜（Viola brevistipilatavar. brevistipilata）种内生活史变异及其生殖特征。我们在北海道西南部的常见落叶林中选择了10个居群，每个居群标记了40-70株单株。标记的个体每1-2周监测一次。CH和CL花的表达在居群间存在差异。也就是说，有人口组成的植物只有CH花，而其他人口产生CL花后，CH花更长的芽寿命这一现象被观察到，即使在人口位于同一地点。结果表明，V. brevistifilatavar. brevistilatula显示出明显的生活史变化之间的人口。
Intraspecific life‐history variations ofViola brevistipulatavar.brevistipulatawere examined with special reference to reproductive features based on quantitative and qualitative monitoring of chasmogamous (CH) and cleistogamous (CL) flowers. We selected 10 populations in southwestern Hokkaido in common deciduous forests, and marked 40–70 individual plants at each population. Marked individuals were monitored every 1–2 weeks. The expression of CH and CL flowers was distinct among the populations. That is, there were populations consisting of plants with only CH flowers, while other populations produced CL flowers after CH flowers with greater shoot longevity This phenomenon was observed even in populations located at the same site. The results suggest thatV. brevistipulatavar. brevistipulatashows distinct life‐history variations among the populations.