摘要
以长白山阔叶红松林25 hm2样地为平台,选取样地中胸径≥1 cm的稠李个体共计396株,将其分为1～3、3～10和〉10 cm 3个径级,通过微卫星标记对这些个体进行了空间遗传结构的空间自相关分析.结果表明： 样地中的稠李种群总体上具有一定的空间特征,在70 m范围内呈显著正相关, 110 m外则呈负相关.不同年龄级的个体空间遗传结构相似, 且主要源于有限的花粉和种子扩散距离.该稠李居群未出现明显的自疏现象.
All 396 Prunus padus individuals of the population with DBH （diameter at breast height） ≥1 cm were sampled in a 25 hm2 broadleaved Korean pine forest plot of Changbai Mountains and divided into three DBH classes： 1-3 cm, 3-10 cm, and 〉10 cm. They were then genotyped using microsatellite loci. The spatial autocorrelation of their genetic structure was analyzed at different distance classes and life stages. The results showed that positive autocorrelation mainly occurred at scales less than 70 m, while negative autocorrelation occurred at scales larger than 110 m. The spatial genetic structure （SGS） at different life stages was similar due to limited pollen/seed dispersal and asexual reproduction. No significant self-thinning occurred in the studied population.
出处
《应用生态学报》
CAS
CSCD
北大核心
2014年第2期305-310,共6页
Chinese Journal of Applied Ecology
基金
中国科学院知识创新工程重要方向性项目(KSCX2-EW-Z)
国家自然科学基金项目(31300517
31100447)资助
关键词
稠李
微卫星标记
空间自相关分析
空间遗传结构
Prunus padus
microsatellite loci
spatial autocorrelation analysis
spatial genetic structure.
