完全雄性柿种质‘雄株8号’作为中国甜柿育种亲本的可能性研究  

Application Potential of Chinese Androecious Genotype,‘Male 8' as the Parent in the Genetic Improvement of PCNA Persimmon

作　　者：张娜[1] 莫荣利[1,2] 张青林[1,3] 罗正荣[1,3] 

机构地区：[1]华中农业大学园艺植物生物学教育部重点实验室,武汉430070 [2]湖北省农业科学院经济作物研究所,武汉430064 [3]黄冈师范学院大别山特色资源开发湖北省协同创新中心,湖北黄冈438000

出　　处：《园艺学报》2016年第11期2133-2140,共8页Acta Horticulturae Sinica

基　　金：公益性行业(农业)科研专项(201203047)

摘　　要：‘雄株8号’是中国中部大别山区分布的完全雄性柿种质,可能源自中国原产完全甜柿(中国甜柿)的杂交后代或是其自然变异,其作为完全甜柿专用授粉品种的可能性已有研究报道,但其作为完全甜柿育种亲本的应用潜力尚不明确。以‘华柿1号’(不完全涩柿)ב雄株8号’的杂交后代单株为试材,以常见中国甜柿、日本甜柿和非完全甜柿为对照,对其果实进行可溶性和不溶性单宁含量、单宁细胞大小等指标测定,确认杂交后代单株H8-2为具中国甜柿自然脱涩特点的完全甜柿类型。现有完全甜柿自然脱涩性状遗传特点的研究结果认为,只有日本甜柿相互杂交,或者是亲本之一为中国甜柿时,F_1才可能出现完全甜柿单株。该研究结果首次证明中国原产完全雄性柿种质‘雄株8号’带有控制自然脱涩性状的显性基因,因此其在完全甜柿遗传改良中具有作为育种亲本的应用潜力。Distributed in Dabie mountain area of the central China, the androecious genotype, ＇Male 8＇, probably derived from Chinese pollination constant ＆ non-astringent persimmon （C-PCNA） hybrids or its natural variation. Although its application value in being dedicated pollinated varieties of PCNA has been reported, its application potential as breeding parent of PCNA is undefined. In this study, the hybrid individual, H8-2, derived from ＇Huashi 1＇ （pollination variant ＆ astringent persimmon, PVA）× ＇Male 8＇ was taken as test materials. It was classified as PCNA type with the characteristic of natural astringency-loss in PCNA persimmons by determining tannin content, tannin cell size and other indexs of fruit, compared with common C-PCNA, Japanese PCNA persimmon （J-PCNA） and non-PCNA. According to the present research on genetic features of PCNA persimmon, the new individual of PCNA may generate in F1 populations when hybridize between J-PCNA types or one of the parents is C-PCNA. Thus, the study firstly demonstrated that Chinese androecious genotype, ＇Male 8＇, carried the dominant gene that control natural loss of astringency in C-PCNA, which will bring an important application potential as the male parent for the genetic improvement of the PCNA persimmon.

关 键 词：完全雄性柿种质 中国甜柿 可溶性单宁 单宁细胞 遗传改良 

分 类 号：S665.2[农业科学—果树学]