Interspecific Hybrid Dwarfism and Geographical Distribution of the Dwarfness Gene in Capsicum
Interspecific Hybrid Dwarfism and Geographical Distribution of the Dwarfness Gene in Capsicum
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辣椒种间杂种矮化及矮化基因的地理分布
DOI：
10.2503/jjshs.58.609
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发表时间：
1989
影响因子：
--
通讯作者：
T. Namiki
中科院分区：
文献类型：
--
作者：
S. Yazawa;Takanori Sato;T. Namiki
辣椒的某些品种与辣椒的种间杂种表现矮化。chinense No. 3341′。矮秆性表现为主枝和侧枝均发育出数片叶片后，叶片分化终止，矮秆植株一般可保持两年的生长特性。矮秆植株的根/顶比小于正常植株。矮秆植株嫁接正常植株后根系生长接近正常，矮秆性受两对互补显性基因控制，其中一对基因在‘No.1’中纯合。3341′。许多日本老品种以及韩国和中国的地方品种都有另一个基因，在与‘No. 3341′。亚洲其它地区、印度次大陆和南北美洲的品种均不具有与‘No.关于辣椒传入日本的途径，有葡萄牙传入和韩国传入两种说法。目前的遗传学研究强烈表明，一些品种已从韩国引进到日本。
Some cultivars of Capsicum annuum show dwarfness in their interspecific hybrids with C. chinense ′No. 3341′. The dwarfness is represented by the termination of leaf differentiation after development of several leaves in both main and lateral shoots.The dwarf plants generally maintain their growth characteristics for two years. The top/root ratio of the dwarf plants was smaller than in normal plants. Root growth of dwarf plants increased nearly to normal by grafting of normal plants on them.Dwarfness was shown to be controlled by two complemantary dominant genes, one of which is homozygous in ′No. 3341′. Many of the old Japanese cultivars, and the local Korean and Chinese cultivars, had another gene and developed dwarfness in hybrids with ′No. 3341′. All cultivars collected from other Asian areas, the Subcontinent of India, and North and South America did not possess the dwarf gene complementary to the gene of ′No. 3341′, except for one cultivar from Guatemala.There are two theories for the route of pepper introduction to Japan; one by Portuguese and another via Korea. The present genetical studies strongly suggest that some cultivars had been introduced from Korea to Japan.