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Title

배추 GROWTH-REGULATING FACTOR 유전자 발현이 유채 기관크기에 미치는 영향.

Authors

홍준기; 서은정; 이승범; 윤혜진; 이연희

Abstract

GROWTH-REGULATING FACTOR (GRF) genes encode plant-specific transcription factors and play critical roles in regulating the growth and development of lateral organs. In order to explore the agricultural potential of Brassica rapa GRF genes (BrGRFs), we constructed two BrGRF-overexpressing B. napus plants (BrGRF3-1OX and -9OX). BrGRF3-1OX and -9OX developed larger cotyledons, leaves, and seeds than the wild type. The increased organs’ sizes were due to increases in cell number, but not due to cell size alterations. RT-PCR analysis revealed that BrGRFs regulated the expression of a wide range of genes that are involved in gibberellin-, auxin-, cell division-related growth processes. Taken together, our data indicate that BrGRFs act as positive regulators of B. napus growth, thus raising the possibility that they may serve as a useful genetic source for crop improvement with respect to organ size and seed production.

Publication

Korean Journal of Breeding Science, 2018, Vol 50, Issue 4, p378

ISSN

0250-3360

Publication type

Academic Journal

DOI

10.9787/KJBS.2018.50.4.378

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