NUCLEAR-DNA MEASUREMENTS IN DIPLOID AND POLYPLOID SPECIES OF PEPEROMIA (PIPERACEAE)

被引：1
|
作者：
SAMUEL, R
MORAWETZ, W
机构：
[1] Institute of Botany, University of Vienna, Vienna
来源：
CARYOLOGIA | 1992年 / 45卷 / 3-4期
关键词：
D O I：
10.1080/00087114.1992.10797238
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Nuclear DNA contents were measured in eight species of Peperomia (2n = 22, 33, 44, 66). Formaldehyde fixations show more reliable results than those with acetic alcohol, The diploid species vary significantly in chromosome size and DNA-content. Increasing chromosome length is directly correlated with increased DNA-amounts/chromosome in all the species except in triploid P. metallica. Polyploid species have increased DNA-values.
引用
收藏
页码：353 / 358
页数：6
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