[1]廖香娇,张王妮,赵凌吉,等.桃溪蜜柚果实发育期有机酸含量变化及柠檬酸代谢相关基因表达分析[J].江苏农业科学,2025,53(12):183-188.
 Liao Xiangjiao,et al.Changes of organic acid content and expression of genes related to citric acid metabolism in Taoxi pomelo during fruit development period[J].Jiangsu Agricultural Sciences,2025,53(12):183-188.
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桃溪蜜柚果实发育期有机酸含量变化及柠檬酸代谢相关基因表达分析()

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第53卷
期数:
2025年第12期
页码:
183-188
栏目:
园艺与林学
出版日期:
2025-06-20

文章信息/Info

Title:
Changes of organic acid content and expression of genes related to citric acid metabolism in Taoxi pomelo during fruit development period
作者:
廖香娇张王妮赵凌吉刘勇杨莉
江西农业大学农学院,江西南昌 330045
Author(s):
Liao Xiangjiaoet al
关键词:
桃溪蜜柚果实发育有机酸柠檬酸基因表达
Keywords:
-
分类号:
S666.301
DOI:
-
文献标志码:
A
摘要:
为明确桃溪蜜柚果实发育阶段有机酸含量积累的动态变化趋势以及柠檬酸相关基因表达量变化规律,了解果实发育期桃溪蜜柚有机酸形成的可能分子调控途径,以桃溪蜜柚发育期果实为材料,采用高效液相色谱技术(HPLC)和荧光定量PCR分别测定分析有机酸组分含量及柠檬酸代谢相关基因表达量。桃溪蜜柚的果实发育期中,柠檬酸含量为主要有机酸含量,占总有机酸的26%~71%,整体呈上升趋势,可分为缓慢增加期(S2~S3)、快速增加期(S3~S4)以及相对稳定期(S4~S6)。柠檬酸合成基因CmPEPC2和CmCS1的相对表达量在果实的整个发育期呈上调趋势。与柠檬酸含量负相关的转运相关基因CmCHX和CmDIC在柠檬酸S4~S6时期显著上调表达,此外,CmCHX还在S3~S4时期出现显著下调表达。与柠檬酸含量正相关的质子泵基因CmVHA-c4表达量整体呈减少的趋势,而CmVHP2的表达量在S4~S6时期显著下调。柠檬酸降解基因CmACL3、CmAco3、CmNAD-IDH2、CmNAD-IDH3、CmGS2和CmGAD5的相对表达量在S4~S6时期呈上调趋势,其中CmACL3和CmGAD5在S3~S4时期下调表达。综上,在桃溪蜜柚果实发育期过程中,柠檬酸含量影响最大,而柠檬酸含量的变化可能与合成(CmPEPC2、CmCS1)、转运(CmCHX、CmDIC、CmVHP2)以及降解(CmACL3、CmGAD5、CmAco3、CmNAD-IDH2、CmNAD-IDH3、CmGS2)基因有关。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2024-05-31
基金项目:江西省重点研发计划“揭榜挂帅”项目(编号:20223BBF61009);江西省柑橘产业技术体系项目(编号:JXARS-07_栽培岗位)。
作者简介:廖香娇(1999—),女,湖南邵阳人,硕士研究生,主要从事果树生物技术与遗传改良研究。E-mail:2176691134@qq.com。
通信作者:杨莉,博士,副教授,主要从事果树生物技术与遗传育种研究。E-mail:yangli526526@126.com。
更新日期/Last Update: 2025-06-20