Chromosome variations in callus and plant lnduced from haploid embryos of barley

• 발행기관: 한국육종학회
• 저자명: Bong Yeon Kim(金鳳淵) Daune L. Johnson
• 간행물 정보: 『한국육종학회지』Vol.24 No.2, 151~158쪽, 전체 8쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 1992.06.30

영문 초록

The experiment was conducted to know the frequencies of chromosomal variations and effects of callus types, 2, 4-D concentrations and genotypes as well as its interaction in callus and plants regenerated from haploid embryos of barley. Chromosome analysis was done 1,478 cells from 346 embryogenic(E) and nonembrvogenic(NE) calli produced by immatured haploid embryos of Bruce, Klages and Rodeo, spring barley cultivars. Average of chromosomal stability was 67.6%, 79.3% and 75.3% in E callus and 25.9%, 31.3% and 30.8% in NE callus, and 60.9%, 81.2% and 89.4% in plants induced from calli of Bruce, Klages and Rodeo, respectively. The chromosomal variation was predominantly diploidy in callus and plant. The rearrangement of chromosome structure was observed in callus and plant. High concentration of 2,4-D increased the chromosomal variation in callus, while varietal effect was not found among three genotypes.

목차

ABSTRACT

INTRODUCTION

MATERIALS AND METHODS

RESULTS AND DISCUSSION

摘要

REFERENCES

키워드

Haploid embryo Barley Chromosomal variation Chromosome structure