一个调控梨果实石细胞形成的基因PbMYB20
By cloning the key gene PbMYB20 for pear fruit stone cell formation and regulating its expression level, the problem of unclear mechanism of pear fruit stone cell formation was solved, lignin content was regulated, and fruit quality and nutrient accumulation were improved.
CN122012608BActive Publication Date: 2026-07-17SANYA INSTITUTE OF NANJING AGRICULTURAL UNIVERSITY +2
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SANYA INSTITUTE OF NANJING AGRICULTURAL UNIVERSITY
- Filing Date
- 2026-04-16
- Publication Date
- 2026-07-17
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Figure CN122012608B_ABST
Abstract
本发明公开了一个调控梨果实木质素合成的基因PbMYB20，该基因CDS序列为SEQ ID NO.1所示，编码的蛋白序列如SEQ ID NO.2所示。将该基因构建过表达载体注入‘砀山酥梨’果实中，较注射空载对照部位，石细胞和木质素含量显著升高；将该基因构建沉默载体注入‘砀山酥梨’果实中，较注射空载对照部位，石细胞和木质素含量显著降低；将该基因构建过表达载体导入拟南芥中，所获得的PbMYB20转基因拟南芥的导管细胞的次生细胞壁显著增厚，茎中木质素的积累显著升高。该基因的发现为果实品质育种提供新的基因资源，是未来基因工程改良果实品质育种的重要候选基因。
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