Inheritance Analysis of Giant Embryo Mutation Induced by T-DNA Insertion in Rice

• 발행기관: 한국육종학회
• 저자명: Yang Qin Suk-Man Kim Hee-Yeon Park Jae-Keun Sohn
• 간행물 정보: 『한국육종학회지』Vol.41 No.1, 9~15쪽, 전체 7쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2009.03.30

영문 초록

Recently, giant embryonic rice and functional rice food are preferred by more consumers, which are attributed to the fact that the embryo has high concentrations of essential amino acids, fatty acids, and vitamins relative to other parts of rice grains. In this report, the heredity and stability of giant embryo mutations in successive generations were analyzed regarding a giant embryonic line, ‘P47’, induced by T-DNA insertion and a F 2 population from a cross between ‘P47’ and ‘Junam’. The mutant lines with increases of 1.5, 1.7 and 1.8 times on embryo length, width and 100-embryo weight to those of the control showed stable inheritance across three generations. The continuous frequency distributions of embryo size in the F 2 population showed that the embryo size is a quantitative trait of polygene controlled. In addition, wide range of transgressive segregations of six traits affecting embryo size confirmed exchange of genetic materials and recombination between genes controlling embryo size. Five giant embryo mutant lines selected from the F 2 population will be used for artificial selection and improvement of giant embryonic varieties.

목차

INTRODUCTION

MATERIALS AND METHODS

RESULTS

DISCUSSION

REFERENCES

키워드

Giant embryo stable inheritance T-DNA insertion