Comparative analysis of pyrethrin content improvement by mass selection, family selection and polycross in pyrethrum [Tanacetum cinerariifolium (Trevir.) Sch.Bip.] populations
Comparative analysis of pyrethrin content improvement by mass selection, family selection and polycross in pyrethrum [Tanacetum cinerariifolium (Trevir.) Sch.Bip.] populations
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通过群体选择、家系选择和多杂交提高除虫菊 [Tanacetum cinerariifolium (Trevir.) Sch.Bip.] 群体除虫菊酯含量的比较分析
DOI：
10.1016/j.indcrop.2013.12.023
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发表时间：
2014-02-01
影响因子：
5.9
通讯作者：
Wang, Cai-Yun
中科院分区：
文献类型：
--
作者：
Li, Jie;Jongsma, Maarten A.;Wang, Cai-Yun
除虫菊[Tanacetum cinerariifolium（Trevir.）[Sch.Bip.]是广泛用于生产天然除虫菊酯杀虫剂的众所周知的植物。主要育种目标之一是增加除虫菊酯含量。以一个半异质群体为材料，对混合选择、家系选择和多交3种提高除虫菊酯含量的育种方法进行了比较分析。在基础群体中鉴定出23个优良单株，经过一轮混合选择，后代群体中除虫菊酯平均含量从1.37%提高到1.69%。从基础群体衍生出的23个优良单株中选择23个无性系进行多交试验，结果表明，该群体的平均除虫菊酯含量提高了1.87%。作为第三种方法，从23个家系中选择12个，并在每个家系内进行杂交。该方法不能提高除虫菊酯含量。混合选择和多交均提高了改良群体中优良个体的出现频率，使除虫菊酯含量的变异系数由基础群体的29%分别降低到18%和16%。这些结果表明，在除虫菊种群的快速改良中，多交选择比混合选择更有效，而家系选择则不适宜。(C)2013爱思唯尔有限公司版权所有。
Pyrethrum [Tanacetum cinerariifolium (Trevir.) Sch.Bip.] is a well-known plant widely used for the production of natural pyrethrin insecticides. One of the main breeding goals is to increase pyrethrin content. Comparative analysis of three breeding methods for the improvement of pyrethrin content by mass selection, family selection and polycross was carried out based on an unselected heterogeneous population. Twenty-three elite plants were identified in the base population, and one round of mass selection raised the average pyrethrin content from 1.37% to 1.69% in the progeny population. Polycross was conducted using 23 clones derived from the above same 23 elite plants derived from the base population, and the average pyrethrin content of that population improved even more to 1.87%. As a third method 12 out of 23 families were selected and hybridized within each family. This method did not improve pyrethrin content. Both mass selection and polycross increased the frequency of desirable individuals in the improved populations, and the variation coefficient of pyrethrin content was reduced from 29% in the base population to 18% and 16% after mass selection and polycross, respectively. These results show that polycross is more effective than mass selection for the rapid improvement of pyrethrum populations, and that family selection is not suitable. (C) 2013 Elsevier B.V. All rights reserved.