雌雄同株和雌雄异株的薛荔（L.）理查德杂种杂交中的杂种优势。

Heterosis in the hybridisation between the monoecious and dioecious subspecies ofEcballium elaterium (L.) Richard.

机构信息

Laboratory of Biology, Faculty of Science, University of Salamanca, Salamanca, Spain.

出版信息

Theor Appl Genet. 1985 May;69(3):293-5. doi: 10.1007/BF00662446.

Abstract

By means of a statistical analysis carried out on a number of samples grown in balanced incomplete blocks, respectively corresponding to filial generations which (pure, hybrid or backcross) can be discerned in the hybridisation between the monoecious and dioecious subspecies of the Mediterranean wild cucurbitaceaeEcballium elaterium (L.) Richard, the possible presence of a group of polygenes which modify or regulate the durability of the life of the plants has been investigated, studying especially the most frequent and the most characteristic observable effect of polygenes, the heterosis or hybrid vigour. Experimental results indicates that there is heterosis with respect to the survival of the individual plant. The occurrence of the phenomenon of heterosis is experimental evidence of the presence of a system of polygenes which has influence upon this particular quality of the plant (survival). Every one of these polygenes in the genotype of a subspecies has alleles somehow different from those of another (ofE. elaterium).

摘要

通过对一系列平衡不完全区组中生长的样本进行统计分析，分别对应于雌雄同体和雌雄异株的地中海野生葫芦科植物Ecballium elaterium（L.）Richard 之间杂交的后代（纯合子、杂交子或回交子），研究了可能存在一组多基因，这些基因可以修饰或调节植物的寿命。特别研究了多基因最常见和最典型的可观察效应，杂种优势或杂交活力。实验结果表明，个体植物的存活率存在杂种优势。杂种优势现象的发生是多基因系统存在的实验证据，该系统对植物的特定品质（存活率）有影响。在一个亚种的基因型中，每一个多基因都有或多或少与另一个（E. elaterium）不同的等位基因。