Current status and prospects of molecular marker development for systematic breeding program in citrus

Citrus is an economically important fruit crop widely growing worldwide

Ho Bang Kim; Jae Joon Kim; Chang Jae Oh; Su-Hyun Yun; Kwan Jeong Song

2016

Scholarcy highlights

  • Citrus is an economically important fruit crop widely growing worldwide
  • Citrus production largely depends on natural hybrid selection and bud sport mutation
  • Unique botanical features including long juvenility, polyembryony, and QTL that controls major agronomic traits can hinder the development of superior variety by conventional breeding
  • SSR markers for identifying zygotic and nucellar individuals will contribute to cost-effective breeding
  • The two high quality citrus reference genomes recently released are being efficiently used for genomics-based molecular breeding such as construction of reference linkage/physical maps and comparative genome mapping
  • The development of DNA molecular markers tightly linked to various agronomic traits and the cloning of useful and/or variant genes will be accelerated through comparative genome analysis using citrus core collection and genome-wide approaches such as genotyping-by-sequencing and genome wide association study

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