植物研究 ›› 2022, Vol. 42 ›› Issue (5): 780-789.doi: 10.7525/j.issn.1673-5102.2022.05.009
收稿日期:
2022-03-29
出版日期:
2022-09-20
发布日期:
2022-09-15
通讯作者:
张辉
E-mail:zhanghui@nwnu.edu.cn
作者简介:
张玉洁(1997—),女,硕士研究生,主要从事系统与进化植物学方向的研究。
基金资助:
Yujie ZHANG, Pengxia SHI, Fan ZHAO, Xiaodan CHEN, Kun SUN, Hui ZHANG()
Received:
2022-03-29
Online:
2022-09-20
Published:
2022-09-15
Contact:
Hui ZHANG
E-mail:zhanghui@nwnu.edu.cn
About author:
ZHANG Yujie(1997—),female,master,major in plant systematics and evolution.
Supported by:
摘要:
为了探究柳穿鱼(Linaria vulgaris)不同地理居群的遗传多样性,利用叶绿体DNA的rpl32-trnL片段对包含62个个体的4个柳穿鱼地理居群遗传多样性进行了研究。结果显示:柳穿鱼4个居群中共检测到15种单倍型和76个变异位点,总遗传多样性较高(Hd=0.878,π=0.003 88,K=2.994),遗传变异主要存在于居群内(51.49%),隶属于柳穿鱼虫媒异交繁殖策略的遗传特征;不同地区柳穿鱼居群间遗传分化大(0.466 14),居群间基因交流水平较低(0.29);遗传分化程度与地理距离存在中等程度相关性但不显著(R2 = 0.36,P > 0.05)。中性检验显示除合水居群(HS)在进化过程中经历过瓶颈效应(Fu and Li’s D=-2.450 49,P<0.05)外,其他居群进化过程符合分子进化的中性理论。本研究结果不仅揭示了繁殖策略、地理隔离及生境干扰等因素塑造我国北方柳穿鱼居群遗传多样性和遗传结构特征,而且也为今后柳穿鱼资源保护策略的选择提供了理论依据。
中图分类号:
张玉洁, 石鹏霞, 赵凡, 陈晓丹, 孙坤, 张辉. rpl32-trnL片段在柳穿鱼不同地理居群遗传多样性分析中的应用[J]. 植物研究, 2022, 42(5): 780-789.
Yujie ZHANG, Pengxia SHI, Fan ZHAO, Xiaodan CHEN, Kun SUN, Hui ZHANG. Genetic Diversity Analysis from Different Geographic Populations of Linaria vulgaris var. sinensis by rpl32-trnL Fragment[J]. Bulletin of Botanical Research, 2022, 42(5): 780-789.
表1
柳穿鱼野生居群采样分布数据
编号 No. | 居群(居群代码) Population(Code of population) | 生境 Habitat | 经度 Longitude(E) /(°) | 纬度 Latitude(N) /(°) | 植株数量 Number | 鉴定人 Appraiser | 繁育性 Breeding |
---|---|---|---|---|---|---|---|
1 | 河北围场(WC) | 山地Mountain | 117.77 | 41.95 | 16 | 张辉ZHANG Hui | SI |
2 | 河北查字林场(CZ) | 沙地Sand land | 117.44 | 42.07 | 17 | 张辉ZHANG Hui | SI |
3 | 宁夏银川(YC) | 路旁Wayside | 106.00 | 38.57 | 13 | 李小伟LI Xiaowei | SI |
4 | 甘肃合水(HS) | 路旁Wayside | 108.02 | 35.82 | 16 | 孙坤SUN Kun | SI |
表2
柳穿鱼4个不同地理居群的单倍型分布、遗传多样性及中性检验
居群 Population | 单倍型数 Number of haplotype (n) | 单倍型(个体数量) Haplotypes and number of individuals | 单倍型多样性 Haplotype diversity | 核苷酸多样性 Nucleotide diversity | 核苷酸平均差异 Average number of nucleotide differences | 中性检验 Neutrality test | |
---|---|---|---|---|---|---|---|
Tajima’s D | Fu and Li’s D | ||||||
合计 total | 15 | Hap_1(1),Hap_2(7),Hap_3(1),Hap_4(1),Hap_5(2),Hap_6(1),Hap_7(6),Hap_8(3),Hap_9(1),Hap_10(13),Hap_11(1),Hap_12(1),hap_13(12),Hqp_14(10),Hap_15(2) | 0.878 | 0.003 88 | 2.994 | -1.127 66 | -2.655 78* |
YC | 3 | Hap_1(1),Hqp_14(10),Hap_15(2) | 0.731 | 0.001 17 | 0.949 | -0.058 95 | 0.049 07 |
HS | 4 | Hap_9(1),Hap_10(13),Hap_11(1),Hap_12(1) | 0.742 | 0.001 89 | 1.525 | -1.607 71 | -2.450 49* |
CZ | 7 | Hap_2(6),Hap_3(1),Hap_4(1),Hap_5(2),Hap_6(1),Hap_7(3),Hap_8(3) | 0.838 | 0.003 37 | 2.603 | -0.080 17 | -0.573 69 |
WC | 3 | Hap_2(1),Hap_7(3),hap_13(12) | 0.425 | 0.001 39 | 1.100 | -0.273 70 | 0.253 71 |
XB | 7 | Hap_1(1),Hap_9(1),Hap_10(13),Hap_11(1),Hap_12(1),Hqp_14(10),Hap_15(2) | 0.872 | 0.003 47 | 2.808 | -0.713 68 | -2.183 90 |
HB | 8 | Hap_2(7),Hap_3(1),Hap_4(1),Hap_5(2),Hap_6(1),Hap_7(6),Hap_8(3), hap_13(12) | 0.799 | 0.002 52 | 1.943 | -0.376 46 | -1.022 55 |
表4
柳穿鱼不同地理居群遗传变异的AMOVA分析
变异来源 Source of variation | 自由度 df | 离差平方和 Sum of squares | 变异组成 Variance components | 变异比例 Percentage of variation /% | F-statistic |
---|---|---|---|---|---|
组间 Among groups | 1 | 4.278 | 0.015 78Va | 3.15 | FCT=0.031 46 |
组内居群间 Among populations | 2 | 7.532 | 0.227 56Vb | 45.37 | FSC=0.468 39*** |
居群内 Within populations | 58 | 14.980 | 0.258 27Vc | 51.49 | FST=0.485 11*** |
合计 Total | 61 | 26.790 | 0.501 61 | 100 |
表5
柳穿鱼属及金鱼草属部分物种遗传多样性与其繁育系统的关系比较
属名 Genus name | 繁育性 Breeding | 分子标记类型Marker | HO | HE | HT | GST | FST | Nm | 参考文献 Ref. |
---|---|---|---|---|---|---|---|---|---|
金鱼草属 Antirrhinum | SI | 等位酶 | 0.225 | 0.255 | 0.239 | 0.11 | 0.356 | 2.128 | Mateu-Andre’s(1999,2003,2004,2006) Torres E(2003) |
RAPD | — | — | 1.500 | 0.119 | — | — | Torres E,et al(2003) | ||
同工酶 | 0.108 | 0.073 | 0.141 | 0.268 | Mateu-Andre’s(2000) | ||||
部分SC | 等位酶 | 0.125 | 0.145 | 0.175 | 0.154 | 1.750 | Mateu-Andre’s(2006) | ||
SC | 等位酶 | 0.012 | 0.014 | 0.050 | 0.850 | 0.270 | 0.230 | Mateu-Andre’s(2004,2006) | |
RAPD | 0.190 | — | 1.000 | 0.822 | 0.776 | — | Jime’nez JF,et al(2002) | ||
柳穿鱼属 Linaria | SI | 等位酶 | 0.228 | 0.217 | 0.240 | 0.034 | — | 4.580 | Gabriel(2007) |
RAPD | — | — | — | 0.138 | — | 3.120 | 陈晓丹(2013) | ||
SC | 等位酶 | 0.045 | 0.055 | 0.134 | 0.521 | — | 0.840 | Gabriel(2007) |
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