Mar
20, 2024
Melon ( Cucumis melo L.) is an important vegetable crop that has an extensive history of cultivation, and has been classified into two subspecies, C. melo ssp. agrestis and C. melo ssp. melo. Furthermore, the difference in their geographical distribution resulted in diverse characteristics between the two subspecies, shaping genomic imprinting in their genomes. Wild germplasm is an important genetic resource in crop breeding because of its high genetic diversity and resistance against diseases. However, all of the previous reported genomes were assembled based on the cultivated melon, the genome of wild and semi-wild melon types is not yet available. Therefore, assembling high-quality wi...
Mar
20, 2024
Recently, the Strawberry Germplasm Improvement Team of Zhengzhou Fruit Research Institute and Agricultural Genomics Institute at Shenzhen published a paper entitled " Phased gap-free genome assembly of octoploid cultivated strawberry illustrates the genetic and epigenetic divergence among subgenomes " in Horticulture Research . In this paper, we have assembled a haplotype-phased gap-free octoploid genome of ‘Benihoppe’ and revealed the dynamics of gap-free DNA methylation of subgenomes, which allowed us to uncover the sequence, structure, and epigenetic divergences among the subgenomes. ‘Benihoppe’ has become one of the most widely cultivated varieties in our country for its adaptability, ...
Mar
20, 2024
Recently, the researchers from Zhengzhou Fruit Research Institute used the technology of combining genomics and molecular biology to assemble the genes of the blood-flesh peach variety, ‘Tian Jin Shui Mi’ (TJSM), discovered the key genes and genetic variation mechanisms of blood-flesh peach, and clarified the characteristics and maturity of blood-flesh peach. The molecular mechanism of synergistic variation during this period laid the foundation for diversified blood-flesh peach breeding. The results were published in Horticulture Research . The assembled the genome of a blood-fleshed peach Chinese landrace TJSM and found that the genome size of TJSM was 243.5Mb, compared with the reported...
Dec
18, 2023
Kiwifruit resources and breeding innovation team from the Zhengzhou Fruit Research Institute published an article “Development of a 135K SNP genotyping array for Actinidia arguta and its applications for genetic mapping and QTL analysis in kiwifruit” in the Plant Biotechnology Journal. Kiwifruit ( Actinidia spp) is a woody, perennial and dioecious vine. In this genus, there are multiple ploidy levels but the main cultivated cultivars are polyploid. Despite the availability of many genomic resources in kiwifruit, SNP genotyping is still a challenge given these different levels of polyploidy. In this study, we developed a high-density SNP genotyping array to facilitate genetic studies and ...
