| 自马铃薯二倍体栽培种(Solanum phureja)自交后代中选育诱发高频率双单倍体授粉者的研究 |
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| 引用本文： | 吕文河,李景华.自马铃薯二倍体栽培种(Solanum phureja)自交后代中选育诱发高频率双单倍体授粉者的研究[J].中国马铃薯,1987(1). |
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| 作者姓名： | 吕文河 李景华 |
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| 作者单位： | 东北农学院，东北农学院 |
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| 摘 要： | 本试验采用了早春播种,让其植株在冷凉的气候条件下开花,并结合蕾期授粉的方法。克服了自交不亲合性,获得了3000多粒IVP35(S.Phureja)的自交种子。 1984年以东农303(雄性不育)作被测母本,用IVP35各自交后代作授粉者所作的测交结果表明,诱发单倍体的隐性基因不只1对, 因为IVP35自交后代单株无性系间诱发单倍体的频率有显著差异。本试验还选育出了优良授粉者NEA—P16和NEA—P19。按100个浆果中产生孤雌生殖的植株来计算,NEA—P16和NEA—P19诱发孤雌生殖的频率分别为IVP35的2.66和2.48倍。与优良授粉者的选育及孤雌生殖有关的问题在本论文中也进行了讨论。
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STUDY ON SELECTING SUPERIOR POLLINATORS FROM SEEFING PROGENIES OF SOLANUM PHUICEJA WITH HIGHFREQENCY OF HAPLOID INDUCTION |
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| Abstract: | It is well known that the cultivated diploid Solatium phureja is self-incompatibility. In order to overcome the self-incompatibility and obtain inbreeding true seeds from IVP35 (S. Phureja), the method of early planting and controlling the plants flowering in cool condition in combination with bud pollination was used in the experiment. The result indicated that this method was effective, more than 3000 inbreeding true seeds had been obtained during 1982—1984 by means of the method.The results of the test crosses with NEA—P numbers made in 1984 on the cultivar NEA303 (male sterile) suggested that genes involed in haploid induction are more than one pairs of recessive gene, because there are significant difference in frequency of haploid induction among the NEA—P numbers.The superior pollinators NEA—P16 and NEA—P19 had been selected. According to the number of parthenogenetic plants per 100 berries, the frequency of parthenogenesis induction of NEA—P16 and NEA—P19 was outnumbering IVP35 2.66 and 2.48 to 1.0 respectively.Some problems related to selecting pollinators with high-frequency haploid induction and parthenogenesis were discussed. |
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