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广东药科大学 中药学院,国家中医药管理局 岭南药材生产与开发重点研究室,中药材国家现代农业产业技术体系广州综合试验站(CARS-21-16),广州 510006
刘晓莹,在读硕士,从事药品食品分析与质量控制研究工作,E-mail:1552436667@qq.com
* 何梦玲,博士,副教授,从事中药资源开发与品质评价研究工作,E-mail:hmldf@126.com
收稿日期:2020-04-04,
网络出版日期:2020-10-22,
纸质出版日期:2021-02-20
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刘晓莹,李嘉惠,杨钰婷等.基于AFLP分子标记的广藿香遗传多样性分析[J].中国实验方剂学杂志,2021,27(04):152-158.
LIU Xiao-ying,LI Jia-hui,YANG Yu-ting,et al.Genetic Diversity Analysis of Pogostemon cablin Based on AFLP Markers[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(04):152-158.
刘晓莹,李嘉惠,杨钰婷等.基于AFLP分子标记的广藿香遗传多样性分析[J].中国实验方剂学杂志,2021,27(04):152-158. DOI: 10.13422/j.cnki.syfjx.20202312.
LIU Xiao-ying,LI Jia-hui,YANG Yu-ting,et al.Genetic Diversity Analysis of Pogostemon cablin Based on AFLP Markers[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(04):152-158. DOI: 10.13422/j.cnki.syfjx.20202312.
目的
2
采用扩增片段长度多态性(AFLP)分子标记方法研究广藿香的种质遗传多样性。
方法
2
采用12对引物对14个品种共212个样本进行AFLP分析;利用POPGENE 32,Arlequinver 3.5,MEGA7,NTSYSpc 2.10e等生物学分析软件进行多态性参数计算、主坐标分析以及聚类分析。
结果
2
12对引物共扩增出2 238个位点,其中多态性位点有2 226个,多态位点百分率为99.38%;在种群间,有效等位基因数(
Ne
)为1.365 6±0.066 3,Nei's基因多样性指数(
H
)为0.220 7±0.036 4,Shannon多态性信息指数(
I
)为0.343 7±0.050 2;在种群内,
Ne
为1.118 5±0.038 7,
H
为0.071 3±0.023 0,
I
为0.109 4±0.035 0;分子方差学分析(AMOVA)表明广藿香的总变异有71.57%来源于种群间,28.43%来源于种群内;聚类分析可将14个种群分为4大类。
结论
2
AFLP分子标记结果显示,广藿香种间具有比较丰富的遗传多样性,种内遗传多样性相对较小,种间遗传分化显著,可为广藿香后续的优良种质筛选等研究提供参考依据。
Objective
2
This paper aims to study the genetic diversity of
Pogostemon cablin
by amplified fragment length polymorphism (AFLP) markers.
Method
2
The 12 pairs of primers were used for AFLP analysis of 212 samples from 14 varieties,and biological analysis software such as POPGENE 32,Arlequinver 3.5,MEGA 7 and NTSYSpc 2.10e were used for polymorphism parameter calculation,principal coordinate analysis and cluster analysis.
Result
2
A total of 2 238 loci were amplified by 12 pairs of primers. 2 226 of them were polymorphic loci, accounting for 99.38%. At the inter-population level,the values of effective alleles(
Ne
),Nei's gene diversity index(
H
),Shannon polymorphic information index(
I
) were 1.365 6±0.066 3, 0.220 7±0.036 4, and 0.343 7±0.050 2,respectively;and 1.118 5±0.038 7,0.071 3±0.023 0,0.109 4±0.035 0,respectively at the intra-population level. Analysis of molecular variance(AMOVA)showed that 71.57% of the total variation of
P. cablin
was of inter-population nature, and 28.43% was of intra-population nature. The 14 populations could be divided into four groups by cluster analysis.
Conclusion
2
The results of AFLP molecular markers showed that abundant genetic diversity was present at inter-population level of
P. cablin
,however,relatively low at intra-population level; the genetic differentiation at the inter-population level was significant,which could provide a reference for the subsequent study of good germplasm selection of
P. cablin
.
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