以辣椒核型雄性不育两用系 AB154和 AB 兖1691为试材,对不育株和可育株小孢子的不同发育时期进行了细胞学比较分析。结果表明:不育株小孢子败育发生在四分体小孢子形成以前,靠近小孢子的一层绒毡层细胞在小孢子母细胞期已解体,其余绒毡...以辣椒核型雄性不育两用系 AB154和 AB 兖1691为试材,对不育株和可育株小孢子的不同发育时期进行了细胞学比较分析。结果表明:不育株小孢子败育发生在四分体小孢子形成以前,靠近小孢子的一层绒毡层细胞在小孢子母细胞期已解体,其余绒毡层细胞在花粉粒成熟期仍然结构完整;可育株绒毡层在单核花粉粒期开始解体,花粉粒成熟期时完全解体。不育株花药药隔维管束发育滞后于可育株,退化却早于可育株。部份绒毡层提前解体和药隔维管束发育异常使小孢子正常发育所需要的营养物质供应受阻,可能是造成小孢子败育的重要原因。展开更多
利用分期播种和混合分群法(BSA)对发现的生态核雄性不育材料春杂的生态学机制、遗传机理进行了初步分析.结果表明,该材料在2 a的分期播种试验中雄花均表现为完全不育,属于花粉败育型雄性不育类型.遗传分析结果表明,该材料的育性由1对隐...利用分期播种和混合分群法(BSA)对发现的生态核雄性不育材料春杂的生态学机制、遗传机理进行了初步分析.结果表明,该材料在2 a的分期播种试验中雄花均表现为完全不育,属于花粉败育型雄性不育类型.遗传分析结果表明,该材料的育性由1对隐性基因控制,利用SSR标记将该基因定位在玉米的第2染色体上,位于标记um c 2129和bn lg 1329之间.展开更多
Hangjiao Hongfeng is a new hot pepper F1 hybrid cultivar which is bred with the cytoplasmic male sterile line 11066 AH as the female parent and the restoringline 11044 CH as the male parent. Its fruit is early-mid mat...Hangjiao Hongfeng is a new hot pepper F1 hybrid cultivar which is bred with the cytoplasmic male sterile line 11066 AH as the female parent and the restoringline 11044 CH as the male parent. Its fruit is early-mid maturing and in the shape of a long finger.The immature fruit is in dark-green and mature fruit is in dark-red.The average length, width and flesh thickness are 15.7, 1.9 and 0.17 cm, respectively. The yield of dry pepper is 6 750 kg/hm^2. The average contents of Vc, soluble solid and dry matter are 1.30 mg/g, 10%, and 14% respectively. The cultivar has good resistance to pepper blight, viral disease and anthracnose. It shows strong tolerance to heat, water logging and drought. It is suitable for spring field cultivation in Gansu, Xinjiang and Inner Mongolia.展开更多
文摘以辣椒核型雄性不育两用系 AB154和 AB 兖1691为试材,对不育株和可育株小孢子的不同发育时期进行了细胞学比较分析。结果表明:不育株小孢子败育发生在四分体小孢子形成以前,靠近小孢子的一层绒毡层细胞在小孢子母细胞期已解体,其余绒毡层细胞在花粉粒成熟期仍然结构完整;可育株绒毡层在单核花粉粒期开始解体,花粉粒成熟期时完全解体。不育株花药药隔维管束发育滞后于可育株,退化却早于可育株。部份绒毡层提前解体和药隔维管束发育异常使小孢子正常发育所需要的营养物质供应受阻,可能是造成小孢子败育的重要原因。
文摘利用分期播种和混合分群法(BSA)对发现的生态核雄性不育材料春杂的生态学机制、遗传机理进行了初步分析.结果表明,该材料在2 a的分期播种试验中雄花均表现为完全不育,属于花粉败育型雄性不育类型.遗传分析结果表明,该材料的育性由1对隐性基因控制,利用SSR标记将该基因定位在玉米的第2染色体上,位于标记um c 2129和bn lg 1329之间.
基金Supported by the Program of Gansu Province Aerospace Engineering Biology Breeding Key Laboratory(139RTSE033)~~
文摘Hangjiao Hongfeng is a new hot pepper F1 hybrid cultivar which is bred with the cytoplasmic male sterile line 11066 AH as the female parent and the restoringline 11044 CH as the male parent. Its fruit is early-mid maturing and in the shape of a long finger.The immature fruit is in dark-green and mature fruit is in dark-red.The average length, width and flesh thickness are 15.7, 1.9 and 0.17 cm, respectively. The yield of dry pepper is 6 750 kg/hm^2. The average contents of Vc, soluble solid and dry matter are 1.30 mg/g, 10%, and 14% respectively. The cultivar has good resistance to pepper blight, viral disease and anthracnose. It shows strong tolerance to heat, water logging and drought. It is suitable for spring field cultivation in Gansu, Xinjiang and Inner Mongolia.
