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南瓜属黄色果皮性状的种间转育及遗传分析
马海龙, 智海英, 岳青
0
(山西省农业科学院园艺研究所,太原 030031)
摘要:
采用种间杂交的方法向中国南瓜及印度南瓜中转育了仅在美洲南瓜中存在的黄色果皮性状基因。研究了黄色果皮 性状的种间遗传规律,发现黄色果皮性状在种间杂种后代中的分离比例符合孟德尔遗传规律。通过比较黄色果皮基因在南瓜 属 3 个种中的遗传表现,发现该基因的性状表达受到种、亲本果形、亲本皮色等多重因素共同作用而具有复杂的遗传表现。 通过种间杂交,可将美洲南瓜特有的黄色果皮性状转育到中国南瓜及印度南瓜中,创制黄色果皮新型种质资源。
关键词:  美洲南瓜  中国南瓜  印度南瓜  种间杂交  黄色果皮性状  遗传分析
DOI:10.13430/j.cnki.jpgr.20191027001
投稿时间:2019-10-27修订日期:2019-12-25
基金项目:山西省重点研发计划项目(201903D221092);山西省农业科学院优势课题组自选项目(YYS1720);山西省农业科学院青年基金项目 (YQN0508);山西省科技成果转化引导专项(201904D131031)
Interspecific Transference and Genetic Analysis of the Trait of Yellow Skin in Cucurbita
MA Hai-long, ZHI Hai-ying, YUE Qing
(Institute of Horticulture, Shanxi Academy of Agricultural Sciences, Taiyuan 030031)
Abstract:
Through interspecific hybridization, the gene for the trait of yellow skin of the fruit, which exists only in Cucurbita pepo, was transferred to C. moschata and C. maxima. Genetic analysis showed that the inheritance pattern in interspecific progenies was in line with the Mendelian law. Genetic performances of the yellow skin gene were compared among the three species in Cucurbita. The results showed that trait expression of this gene was affected by multiple factors including species, parental fruit shape and color. New Cucurbita germplasms with novel yellow skin can be created by transferring the gene from C. pepo to C. moschata and C. maxima through interspecific hybridization.
Key words:  Cucurbita pepo  Cucurbita moschata  Cucurbita maxima  interspecific hybridization  trait of yellow skin  genetic analysis

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