玉米籽粒发育过程中胚乳核DNA含量的变化同籽粒性状的关系

作物学报 ›› 1994, Vol. 20 ›› Issue (01): 46-51.

玉米籽粒发育过程中胚乳核DNA含量的变化同籽粒性状的关系

高群英;D.V.Glover

中国农业科学院作物育种栽培研究所，北京，100081

收稿日期:1992-01-02 修回日期:1992-08-04 出版日期:1994-01-12 网络出版日期:1994-01-12
通讯作者: 高群英

The Relationship of DNA Content in Corn Endosperm Nuclei to Kernel Traits during Kernel Development

Gao Qun-ying;D.V.Glover

Institute of Crop Breeding and Cultivation, CAAS

Received:1992-01-02 Revised:1992-08-04 Published:1994-01-12 Published online:1994-01-12
Contact: Gao Qun-ying

摘要/Abstract

摘要： 用双波长（550,488nm）显微分光光度法以测定籽粒发育时期不同Su2基因剂量（0-3）玉米杂交种（Mo17×B73）胚乳核的DNA含量。结果表明：单个胚乳核的DNA含量在授粉后第8天是3.0-4.6C，10天以后迅速上升，20-22天达到高峰，为48.9-63.9C，然后下降。年份间DNA含量差异显著（P≤0.05）。在籽粒发育过程中，胚乳核DNA含量与籽粒

关键词: 玉米，胚乳核，DNA，籽粒性状

Abstract: A two-wave length (550-488nm) microspectrophotometric method was employed to measure Feulgen Stained corn endosperm nuclei of four isogenetic genotypes (B73×Mo17). The mean DNA content per nucleus in centrally lacated endosperm averaged between 3.0 and 4.6C (C=haploid content) at 8 days after polli

Key words: Corn, endosperm Nucleus, DNA, kernel traits

高群英;D.V.Glover. 玉米籽粒发育过程中胚乳核DNA含量的变化同籽粒性状的关系[J]. 作物学报, 1994, 20(01): 46-51.

Gao Qun-ying;D.V.Glover. The Relationship of DNA Content in Corn Endosperm Nuclei to Kernel Traits during Kernel Development[J]. Acta Agron Sin, 1994, 20(01): 46-51.

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