Telomere-to-telomere haplotype-resolved reference genome reveals subgenome divergence and disease resistance in triploid Cavendish banana
作者机构：Key Laboratory of Plant Resources Conservation and Sustainable UtilizationSouth China Botanical GardenChinese Academy of SciencesGuangzhou 510650China South China National Botanical GardenGuangzhou 510650China University of Chinese Academy of SciencesBeijing 100049China State Key Laboratory of Tropical Crop BreedingShenzhen BranchGuangdong Laboratory of Lingnan Modern AgricultureKey Laboratory of Synthetic BiologyMinistry of Agriculture and Rural AffairsAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518120China School of Marine Sciences and BiotechnologyGuangxi University for NationalitiesNanning 530008China State Key Laboratory of Tropical Crop BreedingTropical Crops Genetic Resources InstituteChinese Academy of Tropical Agricultural SciencesHaikou 571101China
出 版 物：《Horticulture Research》 (园艺研究（英文）)
年 卷 期：2023年第10卷第9期
页 面：85-97页
核心收录：
学科分类：09[农学] 0902[农学-园艺学] 090201[农学-果树学]
基 金：supported by the National Natural Science Foundation of China(No.32070237,31261140366) the Strategic Priority Research Program of Chinese Academy of Sciences(Grant No.XDB31000000)
摘 要：Banana is one of the most important crops of the ***-type bananas,which have a monospecific Musa acuminata origin(AAA),account for around half of the global banana production,thereby are of great significance for human ***,until now,the high-quality haplotype-resolved reference genome was still undecoded for banana ***,we reported the telomere-to-telomere(T2T)and haplotype-resolved reference genome of‘Baxijiao’(Cavendish)consisting of three haploid *** sizes of the three haploid assemblies were estimated to be 477.16 Mb,477.18 Mb,and 469.57 Mb,*** with monospecific origins,the three haploid assemblies showed great differences with low levels of sequence *** large reciprocal translocations were identified among chromosomes 1,4,and *** expansion of gene families that might affect fruit quality and aroma was detected,such as those belonging to sucrose/disaccharide/oligosaccharide catabolic processes,sucrose metabolic process,starch metabolic process,and aromatic compound biosynthetic ***,an expansion of gene families related to anther and pollen development was observed,which could be associated with parthenocarpy and sterility of the Cavendish ***,much fewer resistance genes were identified in‘Baxijiao’than in ***,particularly in the gene clusters in chromosomes 3 and 10,providing potential targets to explore for molecular analysis of disease resistance in *** T2T haplotype-resolved reference genome will thus be a valuable genetic resource for biological studies,molecular breeding,and genetic improvement of banana.
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