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作物学报 ›› 2009, Vol. 35 ›› Issue (6): 1051-1058.doi: 10.3724/SP.J.1006.2009.01051

• 作物遗传育种·种质资源·分子遗传学 • 上一篇    下一篇

小偃54和京411及其杂交后代稳定优选株系光合特性的动态变化

程建峰12,马为民3, 陈根云1,胡美君14,沈允钢1*,李振声5,童依平5,李滨5,李宏伟5   

  1. 1中国科学院上海生命科学研究院植物生理生态研究所,上海200032;2江西农业大学农学院,江西南昌330045;3上海师范大学生命与环境科学学院,上海200234;4浙江大学园艺系,浙江杭州300029;5中国科学院遗传与发育生物学研究所,北京100101
  • 收稿日期:2009-01-05 修回日期:2009-03-17 出版日期:2009-06-12 网络出版日期:2009-04-16
  • 通讯作者: 沈允钢,E-mail:ygshen@sippe.ac.cn
  • 基金资助:

    本项目由国家重点基础研究发展计划(973计划)项目(2009CB118504),中国科学院知识创新工程重大项目(KSCX2-YW-N-059),上海市博士后基金(07R214153)资助.

Dynamic Changes of Photosynthetic Characteristics in Xiaoyan 54,Jing 411 and the Stable Selected Superior Strains of Their Hybrid Progenies

CHENG Jian-Feng12,MA Wei-Min3,CHEN Gen-Yun1,HU Mei-Jun14,SHEN Yun-Gang1*,LI Zhen-Sheng5,Tong Yi-Ping5,LI Bin5,LI Hong-Wei5.   

  1. 1Institute of Plant Physiology & Ecology,Shanghai Institutes for Biological Sciences,Chinese Academy of Sciences,Shanghai 200032,China;2College of Agronomy, Jiangxi Agricultural University,Nanchang 330045,China;3College of Life and Environment Sciences, Shanghai Normal University Shanghai 200234,China;4Department of Horiculture, Zhejiang University,Hangzhou 310029,China;5Institute of Genetics and Developmental Biology,Chinese Academy of Sciences,Beijing 100101,China
  • Received:2009-01-05 Revised:2009-03-17 Published:2009-06-12 Published online:2009-04-16
  • Contact: SHEN Yun-Gang,E-mail:ygshen@sippe.ac.cn

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1641

被引次数

19

摘要：

以上海种植的小偃54和京411及其杂交后代稳定优选株系6号、7号和10号为材料，通过测定抽穗期剑叶的毫秒延迟发光(ms-DLE)和不同生育期倒数第1片功能叶的光合速率(Pn)、叶绿素含量(Chl)、比叶重(SLW)、Fv/Fm、ATP含量和P700还原初始速率来分析其光合特性的动态变化，为小麦育种选择中改善光合性能提供理论依据和技术途径。结果表明，小麦杂交优选后代6号株系的形态农艺性状近于小偃54，7号株系近于京411，10号株系的变异较大。不同基因型小麦及其杂交优选后代的光合特性与生育时期和衡量指标密切相关，Pn为分蘖期>抽穗期>灌浆期>拔节期，叶绿素含量为灌浆期>抽穗期>分蘖期>拔节期，ATP含量为灌浆期>拔节期>分蘖期>抽穗期，P700还原初始速率为灌浆期>抽穗期>拔节期>分蘖期，各生育期间的Fv/Fm无明显差异。小麦光合特性的超亲优势随生育时期而异，杂交优选后代10号株系的Pn和Chl在灌浆期有超亲优势，ATP含量在抽穗期有超亲优势，SLW和P700还原初始速率介于两亲本间。杂交优选后代株系10号聚合了Pn、Chl和ATP含量的超亲优势，其光合特性优于两亲本，而6号劣于两亲本，7号介于两亲本之间。

关键词: 小麦, 杂交后代, 光合作用, 光合磷酸化, 高光效育种

Abstract:

Xiaoyan 54, derived from the cross between Triticum aestivum L. and Thinopyrum ponticum, has special features of inherent higher cyclic photophosphorylation activity during photosynthesis and its higher tolerance to stresses. Many hybrid progenies of Xiaoyan 54 and Jing 411 were produced in the Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, including several lines with stable characters. To explore their photosynthetic properties and provide theoretical basis or technical approaches for wheat breeding selection, the parents (Xiaoyan 54 and Jing 411) and the stable single-seed descent lines 6, 7, and 10 were planted in Shanghai in 2006–2008 growing seasons. Millisecond delayed light emission (ms-DLE) of their flag leaves during the heading stage was determined in 2007. The morpho-agronomic and yield traits of them were investigated in 2008. Net photosynthetic rate (Pn),chlorophyll content (Chl), specific leaf weight (SLW), Fv/Fm, ATP content, initial reduction rate of P700 in reciprocal first functional leaf of them during the different growth stages were determined for analyzing dynamic changes of photosynthetic characteristics in 2008. The morpho-agronomic traits of the line 6 and 7 were similar to Xiaoyan 54 and Jing 411, respectively, and varied markedly in line 10. Photosynthetic characteristics of the parents and stable single-seed descent lines were closely related to the growth stages and measured indexes. Pn decreased in the order of tillering stage > heading stage > grain filling stage > jointing stage; Chl content was different with grain filling stage ranking the first, followed by heading stage, tilleringstage and jointing stage; ATP content was the order of grain filling stage > jointing stage > tillering stage > heading stage; initial reduction rate of P700 was at grain filling stage > heading stage > jointing stage > tillering stage; Fv/Fm at various growth stages were similar without significant differences. The heterobeltiosis of photosynthetic characteristics in wheat changed with different growth stages, such as the heterobeltiosis of Pn or Chl in line 10 was at grain-filling stage, heterobeltiosis of ATP content was at heading stage, SLW and initial reduction rate of P700 in each growth stage were the medium between the parents. Photosynthesis capacity was superior in line 10 than in the parents because of the heterobeltioses on Pn and contents of Chl and ATP. In lines 6 and 7, the photosynthesis capacity was inferior to and between the parents, respectively.

Key words: Wheat(Triticum aestivum L.), Hybrid progeny, Photosynthesis, High photosynthetic efficiency breeding, Photoposphorylation


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