贵州农业科学
貴州農業科學
귀주농업과학
GUIZHOU AGRICULTURAL SCIENCES
2009年
12期
18-20,前插1
,共4页
袁远国%胡明文%李正丽%杨新城%罗孝明
袁遠國%鬍明文%李正麗%楊新城%囉孝明
원원국%호명문%리정려%양신성%라효명
辣椒%胞质雄性不育系%同型保持系%恢复系
辣椒%胞質雄性不育繫%同型保持繫%恢複繫
랄초%포질웅성불육계%동형보지계%회복계
pepper%cytoplasmic male sterile line%homo-maintain line%restorer line
利用引进的辣椒胞质雄性不育系植株和多种类型的自育材料,经4~5代测交、自交、回交得到新的胞质雄性不育系和同型保持系,同时筛选出多个较优的恢复系.研究发现,在测交或回交组合育性分离时,回交父本株系内不同单株对雄性不育的保持能力差异很大,甚至会影响到不育系选育的成败.因此,在测交或回交后代出现育性分离时,需要选择测交(或者回交)父本自交后代的多个不同单株进行成对回交,再根据回交后代的育性表现,淘汰具不良基因型(N(MsMs)、N(Msms))的回交父本,而不育株与基因型为N(msms)的父本饱和回交后将得到新的不育系和同型保持系.
利用引進的辣椒胞質雄性不育繫植株和多種類型的自育材料,經4~5代測交、自交、迴交得到新的胞質雄性不育繫和同型保持繫,同時篩選齣多箇較優的恢複繫.研究髮現,在測交或迴交組閤育性分離時,迴交父本株繫內不同單株對雄性不育的保持能力差異很大,甚至會影響到不育繫選育的成敗.因此,在測交或迴交後代齣現育性分離時,需要選擇測交(或者迴交)父本自交後代的多箇不同單株進行成對迴交,再根據迴交後代的育性錶現,淘汰具不良基因型(N(MsMs)、N(Msms))的迴交父本,而不育株與基因型為N(msms)的父本飽和迴交後將得到新的不育繫和同型保持繫.
이용인진적랄초포질웅성불육계식주화다충류형적자육재료,경4~5대측교、자교、회교득도신적포질웅성불육계화동형보지계,동시사선출다개교우적회복계.연구발현,재측교혹회교조합육성분리시,회교부본주계내불동단주대웅성불육적보지능력차이흔대,심지회영향도불육계선육적성패.인차,재측교혹회교후대출현육성분리시,수요선택측교(혹자회교)부본자교후대적다개불동단주진행성대회교,재근거회교후대적육성표현,도태구불량기인형(N(MsMs)、N(Msms))적회교부본,이불육주여기인형위N(msms)적부본포화회교후장득도신적불육계화동형보지계.
The new cytoplasmic male sterile line, homo-maintain line and some restorer lines were bred from test cross, self cross and back cross of introduced cytoplasmic male sterile lines and some materials bred by Guizhou Horticultural Institute after 4~5 generations. The results showed that there was significant difference in maintain ability of male sterile among the individual plants in the male plant line in test or back cross combinations. Therefore, when the fertility isolation appears in progeny of test or back cross, the individual plants of the male self cross progeny should be back-crossed by a pairing pattern, then the male parent with N(MsMs) or N(Msms) should be eliminated according to its fertility performance of the back cross progeny and finally the new sterile line and its homo-maintain lines can be obtained from the saturation back cross between the sterile plant and the male parent with N(msms).