菊花种质创新研究进展

ResearchProgresofChrysanthemumGermplasm1novation

摘要:

远缘杂交和基因工程是种质创新的主要途径 。本研究总结了菊花的 16个近缘属、17个近缘种种质,依据前人的 杂交实验结果,分析野生种质与菊花亲缘关系的远近,发现亚菊属、春黄菊属和小滨菊属等 6个属与菊花的亲和性较强,野 菊、紫花野菊、毛华菊、甘菊与菊花之间的亲缘关系较近,有 6个属和 11个种的种质与菊花之间的亲缘关系还不明确 。 阐 述菊花基因工程育种在观赏性状和抗性性状改良方面的成果,建议开展更广泛的杂交试验和基因发掘,改进远缘杂交和基 因工程的技术和模式,并搭建高效育种平台,以提升种质创新的效率

Abstract:

Distanthybridizationandgeneticengineringaremainapproachestogermplasminnovation.Inthisstudy,16 relatedgeneraand17relatedspeciesofchrysanthemumweresummarized.Acordingtotheresultsofprevioushybridex- periments,thegeneticrelationshipbetwenwildgermplasmandchrysanthemumwasanalyzed.Itwasfoundthatsixgene- rasuchasAjania,AnthemisandLeucanthemelahadstrongafinitywithChrysanthemum×mori了olium,andthegenetic relationshipamongC.indicum,C.zawadski,C.vestitum,C.lavanduli了oliumandC.mori了oliumwasclose.Thege- neticrelationshipbetwen germplasmof6 generaand11speciesandC.mori了oliumwasnotclear.wealsosummarized theachievementsofchrysanthemumgeneticengineringbredingintheimprovementofornamentalandresistancetraits, andsugestedthatmoreextensivehybridizationexperimentsandgenediscoveryshouldbecariedout,thetechnologyand modeofdistanthybridizationandgeneticengineringshouldbeimproved,andaneficientbredingplatform shouldbe builttoimprovetheeficiencyofGermplasmInnovation.