CHEN Wanting,NI Biyong,ZHANG Fuqiang,et al.Genetic Relationships of Cultivation Apricot and Classification of Prunus zhengheensis Revealed by ITS Sequences[J].Northern Horticulture,2019,43(07):27-33.[doi:10.11937/bfyy.20182702]
基于ITS序列的栽培杏种质亲缘关系及政和杏的分类研究
- Title:
- Genetic Relationships of Cultivation Apricot and Classification of Prunus zhengheensis Revealed by ITS Sequences
- 文献标志码:
- A
- 摘要:
- 以46个主要栽培杏和野生杏种质为试材,采用对杏种质资源ITS序列的克隆和测序方法,研究了主要栽培杏种质的亲缘关系和政和杏的分类地位,以期为杏种质资源分类和遗传育种提供参考依据。结果表明:杏种质资源具有较高的遗传多样性,中性检验显示出显著的负向选择进化模式。基于ITS序列的系统发育树表明,基于ITS序列可较好地将杏组植物划分为梅、政和杏、西伯利亚杏、普通杏和杏李5组,仁用杏与西伯利亚杏的亲缘关系更为相近。相比于普通杏,政和杏与梅的亲缘关系更为相近,应当为梅的一个变种。
- Abstract:
- The genetic relationships of cultivation apricot and the phylogenetic classification of Prunus zhengheensis were studied based on amplification,sequencing and phylogenetic analysis of the internal transcribed spacer(ITS) regions of nuclear ribosomal DNA for 46 main cultivated apricots accessions,in order to supply references for Apricot germplasm resources classification and genetic breeding.The results showed thatt apricot accessions had high levels of genetic diversity and a negative selection evolution model with highly significant and negative values in statistical neutrality tests.Based on the ITS sequences,the phylogenetic tree gave five clear grouping,Prunus mume,〖JP2〗Prunus zhengheensis,Prunus sibirica,Prunus armeniaca and Prunus simonii.And the results supported a close relationship between kernelled apricot and Prunus sibirica.Compared with Prunus armeniaca,Prunus zhengheensis showed a closer relationship with Prunus mume,which suggested that it should be a variant of Prunus mume.
参考文献/References:
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备注/Memo
第一作者简介:陈婉婷(1992-),女,硕士研究生,研究方向为林木遗传育种。E-mail:cwting2004@gmail.com.责任作者:郑品光(1963-),男,本科,高级工程师,现主要从事林业及植物资源等研究工作。E-mail:zpgfzfa@163.com.基金项目:福建省林业专项资金资助项目(闽财指2015-689);中国科学院科技服务网络计划资助项目(KFJ-3W-No.1)。收稿日期:2018-10-25