INTROGRESSION OF ALLIUM-FISTULOSUM L INTO ALLIUM-CEPA L - CYTOGENETIC EVIDENCE

被引：21

作者：

PEFFLEY, EB

MANGUM, PD

机构：

[1] Agronomy, Horticulture, and Entomology Department, Texas Tech University, Lubbock, 79409-4169, TX

来源：

THEORETICAL AND APPLIED GENETICS | 1990年 / 79卷 / 01期

关键词：

ADH-1; locus; Allium; Chromosome substitution; Cytogenetics;

D O I：

10.1007/BF00223796

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

A diploid Allium cepa plant was recovered from the backcross of an interspecific triploid (2 x A. cepa + 1 x A. fistulosum) to an A. cepa diploid which exhibited both A. cepa and A. fistulosum Adh-1 alleles. Cytogenetic analyses revealed a recombinant sub-telocentric chromosome. The ADH-1 locus is believed to be on the long arm of the sub-telocentric A. fistulosum chromosome 5. Meiosis of the triploid progenitor gives strong evidence that recombination occurred. A. fistulosum chromosome 8 has been substituted for A. cepa chromosome 1. © 1990 Springer-Verlag.

引用

页码：113 / 118

页数：6

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