VARIABLE METHYLATION AND DIFFERENTIAL REPLICATION OF GENOMIC DNA IN CULTURED CARROT ROOT EXPLANTS DURING GROWTH INDUCTION AS INFLUENCED BY HORMONAL TREATMENTS

被引：20

作者：

ARNHOLDTSCHMITT, B

HOLZAPFEL, B

SCHILLINGER, A

NEUMANN, KH

机构：

[1] Institut für Pflanzenernährung, Abteilung Gewebekultur, Justus-Liebig-Universität Giessen, Giessen, W-6300

来源：

THEORETICAL AND APPLIED GENETICS | 1991年 / 82卷 / 03期

关键词：

DAUCUS-CAROTA L; TISSUE CULTURE; HORMONES; DNA METHYLATION; DIFFERENTIAL REPLICATION; TRANSITORY GENOMIC VARIATION;

D O I：

10.1007/BF02190613

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The methylation and amplification pattern of genomic DNA of carrot root explants (Daucus carota L.) undergoes transitory changes during the cultural cycle. A high degree of variation was observed as early as 36 h after the incubation of fresh explants in the nutrient medium and, depending on the hormonal treatment significant modifications occurred during 14 days of culture. Proliferative tissue conditioned by kinetin showed an extensive reduction in DNA methylation. Changes in the DNA amplification pattern were not necessarily linked to methylation.

引用

页码：283 / 288

页数：6

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