利用SNP-fgr和InDle标记辅助创制水稻龙粳31(fgr)导入系
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中图分类号：S511文献标志码：A
文章编号：1673-6737（2026）01-0008-05
AbstractThisstudyutilizedLongeng-31，acold-regionearly-maturingjaponicarice，astherecurrentparentand Daohuaxiang-2，apremumaromaticvariety，asthefgrgenedonor.ThroughfunctionalSNP-fgrmarker-asistedselectionforfgr geneidentificationand InDlemarkerdevelopmentbasedonsimplifiedgenomesequencing for geneticbackgroundselection. Longgeng-31（fgintrogressin linewassucessullycreatedaftertree backcrossinggenerations，whichexhibitsientialor similaragronomic traitsto Longgeng-31and possessesfragrantcharacteristics.This studyprovides insights for future molecular-assisted selective breeding in rice.
Key Words： Rice; Longgeng-31; Markers; Fragrance gene; Introgression lines
寒地早粳稻龙粳31丰产性好、稻瘟病抗性年际间表现稳定、抗冷性尤为突出，目前仍是黑龙江省年单个种植面积最大的水稻品种，为黑龙江省水稻生产做出了重要贡献2。（剩余5823字）
