|Table of Contents|

LU Min1,ZHANG Xiaoying1,HUANG Yaxin2,WU Sufang2,AN Huaming1

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年24
Page:
16-25
Research Field:
Publishing date:

Info

Title:
LU Min1,ZHANG Xiaoying1,HUANG Yaxin2,WU Sufang2,AN Huaming1
Author(s):
LU Min1ZHANG Xiaoying1HUANG Yaxin2WU Sufang2AN Huaming1
(1.Agricultural College,Guizhou University/Guizhou Engineering Research Center for Fruit Crops,Guiyang,Guizhou 550025;2.Kiwi fruit Industry Development Bureau of Xiuwen County,Guiyang,Guizhou 550200)
Keywords:
Actinidia deliciosaabnormal fruitabscisic acidgene expression
PACS:
-
DOI:
10.11937/bfyy.20200756
Abstract:
In order to study the possible causes of malformation of kiwi fruit,young fruits of ‘Guichang’ were used as materials.The distribution of abscisic acid in normal fruits and abnormal fruits and the expression of related genes were analyzed.The results indicated that the total ABA content in the abnormal and normal kiwi fruits was similar,but the difference was the distribution.Compared with normal fruits,the ABA content in the middle of abnormal fruits increased significantly,while that in flanking sides decreased significantly.Four genes related to ABA synthesis were analyzed by qRT-PCR,in which the expression level of [STBX]ZEP1[STBZ] was the highest on flanking sides of normal fruit,[STBX]NCED2 was the highest in the middle of normal fruits and on flanking sides of abnormal fruits,NCED3 was the highest on flanking sides of abnormal fruits,and ABA2 was the highest in the middle of normal fruits.Four genes related to ABA catabolism and signal transduction were also analyzed by qRT-PCR.The expression levels of CYP707A2,PP2C1 and PP2C6 were the highest in the middle of normal fruits.However,the expression of CYP707A2l was the highest on flanking sides of the normal fruit.Compared with normal fruit,of the four genes related to ABA synthesis,ABA2 and NCED2 were significantly decreased in the middle of abnormal fruits and significantly increased on flanking sides.Among the four genes related to ABA catabolism and signal transduction,the expression levels of CYP707A2 and PP2C1[STBZ] were significantly decreased in the middle and flanking sides of abnormal fruits.The results provided theoretical basis for revealing the formation of abnormal kiwi fruits.

References:

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Last Update: 2021-02-19