Interspecific isolation is a common mechanism adopted by plants to prevent gene flow between diverged species,thus maintaining species genetic integrity.However,from a plant breeder's perspective,hybridization is ...Interspecific isolation is a common mechanism adopted by plants to prevent gene flow between diverged species,thus maintaining species genetic integrity.However,from a plant breeder's perspective,hybridization is desirable,as it can provide a wider range of agriculturally important traits for crop improvement(Tonosaki et al.,2016).Although significant progress has been made in recent years in our understanding of some key factors controlling pollen-pistil interactions within species,we still know virtually nothing about the genetic and molecular basis underlying interspecific incompatibility.展开更多
Dear Editor,In trans-specific S-haplotypes,crossover recombination at the S-locus,which controls self-incompatibility,has been thought to be highly suppressed.Here,we discovered a previously unreported super S haplot...Dear Editor,In trans-specific S-haplotypes,crossover recombination at the S-locus,which controls self-incompatibility,has been thought to be highly suppressed.Here,we discovered a previously unreported super S haplotype,derived from a rare inter-haplotypic recombination event,that contained two complete suites of functional S-RNase and SLF genes and could break the SI response in trifoliate orange through“self-recognition”within the same pollen.展开更多
基金supported by the National Key R&D Programme of China(grant no.2022YFF1002100)National Natural Science Foundation of China(grant no.32270357).
文摘Interspecific isolation is a common mechanism adopted by plants to prevent gene flow between diverged species,thus maintaining species genetic integrity.However,from a plant breeder's perspective,hybridization is desirable,as it can provide a wider range of agriculturally important traits for crop improvement(Tonosaki et al.,2016).Although significant progress has been made in recent years in our understanding of some key factors controlling pollen-pistil interactions within species,we still know virtually nothing about the genetic and molecular basis underlying interspecific incompatibility.
基金supported by the National Natural Science Foundation of China(grants 32122075,32302489,and 32072523)the Hubei Provincial Natural Science Foundation of China(grant 2023AFB094)+1 种基金the China Agricultural Research System(grant CARS-26)supported by the Biotechnology and Biological Sciences Research Council(BBSRC)grant BB/T00486X/1 to M.B.and Vernonica E.Franklin-Tong.
文摘Dear Editor,In trans-specific S-haplotypes,crossover recombination at the S-locus,which controls self-incompatibility,has been thought to be highly suppressed.Here,we discovered a previously unreported super S haplotype,derived from a rare inter-haplotypic recombination event,that contained two complete suites of functional S-RNase and SLF genes and could break the SI response in trifoliate orange through“self-recognition”within the same pollen.
