ZHANG Xin,DU Hongbin,XUAN Zhengying.Morphological Characteristics of Flower Organ and Cytological Observation of Microspore in Different Development Stage in Xinjiang Turnips[J].Northern Horticulture,2015,39(21):1-5.[doi:10.11937/bfyy.201521001]
新疆芜菁小孢子不同发育时期的细胞学和花器官形态特征观察
- Title:
- Morphological Characteristics of Flower Organ and Cytological Observation of Microspore in Different Development Stage in Xinjiang Turnips
- Keywords:
- Xinjiang turnips; microspore development period; cytological observation; morphological indicators
- 文献标志码:
- A
- 摘要:
- 以3份新疆芜菁为试材，观察其不同发育时期花蕾的细胞学和形态学变化，探讨了小孢子的发育时期与花器官形态特征之间存在的密切关系。结果表明：不同芜菁材料小孢子不同发育时期的花蕾纵径、花蕾横径、花蕾纵横比、花药长、花药纵横比、花瓣长、瓣药比等均存在显著性差异，其中花蕾横径、花蕾纵横比、花瓣长、瓣药比均适合作为不同材料花蕾取样的参考指标，花蕾取材适期的参考指标为花蕾横径1.936 6～2.153 7 mm，花蕾纵横比1.419 4～1.646 6，花瓣长1.353 6～1.932 3 mm，瓣药比1.271 3～1.892 3。
- Abstract:
- Three different Xinjiang turnip genotypes were used as materials，the relationship between microspore developmental stage and morphological characteristics of flowerbuds and anthers were studied by cytological and morphological methods.The results showed that，significant differences existed in longitudinal diameter and transverse diameter of flower buds，the ratio between longitudinal diameter and transverse diameter of flower buds，anther length，anther width，petal length，the ratio of petal length and anther length during the developmental stages of the microspore in all three different Xinjiang turnip genotypes.It indicated that the transverse diameter of buds，the ratio of the longitudinal diameter and the transverse diameter of flowerbuds，petal length and the ratio of the petal length and the anther length were suitable for the determination of sampling time for microspore culture.The appropriate transverse diameter of buds ranged 1.936 6-2.153 7 mm and the ratio of the longitudinal diameter and the transverse diameter of flower bud ranged 1.419 4-1.646 6，the petal length ranged 1.353 6-1.932 3 mm，the ratio between petal length and anther length ranged 1.271 3-1.892 3.
参考文献/References:
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备注/Memo
第一作者简介：张鑫（1990-），男，新疆昌吉人，硕士研究生，研究方向为蔬菜种质资源与遗传育种。E-mail：545248075@qq.com.责任作者：轩正英（1979-），女，辽宁朝阳人，硕士，副教授，研究方向为蔬菜种质资源与遗传育种。E-mail：xzyzky@163.com.基金项目：国家自然科学基金资助项目（31260477）。