Genetic background of the citrus landrace 'Huarongdao Zhoupigan' revealed by simple sequence repeat marker and genomic analyses
文献类型： 外文期刊
作者： Chen, Peng 1 ; Liu, Jingbo 2 ; Wang, Lun 3 ; Liu, Xu 4 ; Guo, Lingxia 2 ; Li, Feifei 2 ; Li, Dazhi 1 ; Chai, Lijun 3 ; Xu, Q 1 ;
作者机构： 1.Hunan Agr Univ, Coll Hort, Changsha 410128, Hunan, Peoples R China
2.Hunan Acad Agr Sci, Changsha 410125, Hunan, Peoples R China
3.Huazhong Agr Univ, Key Lab Hort Plant Biol, Minist Educ, Wuhan 430070, Hubei, Peoples R China
4.Bur Agr & Rural Affairs Huarong Cty, Huarong 414200, Hunan, Peoples R China
关键词： Citrus hybrid; Molecular marker; Genome resequencing; Genetic relationship
期刊名称：SCIENTIA HORTICULTURAE （ 影响因子：3.463； 五年影响因子：3.672 ）
ISSN： 0304-4238
年卷期： 2021 年 289 卷
页码：
收录情况： SCI
摘要： The cultivated landrace 'Huarongdao Zhoupigan' originated in China, and it has a history of more than a hundred years. It is widely cultivated for its distinctive pericarp, soft juicy pulp, slight bitter taste, and rich flavonoids and vitamin C (17.2 +/- 0.08 mg.mL(-1) ). Morphological observation shows that 'Fluarongdao Zhoupigan' is mandarin-like in leaf shape, fruit flesh, easy peeling and crumpled pericarp, implying this variety may be a hybrid of orange and mandarin. To reveal the genetic background of 'Fluarongdao Zhoupigan', 21 citrus accessions were evaluated using nuclear and chloroplast SSR markers and whole-genome SNP information. 'Fluarongdao Zhoupigan' was grouped with mandarins and closely clustered with 'Yuanjiang Nanju' in the nuclear SSR analysis and sub-grouped with 'Goutou' sour orange, 'Dahong' sweet orange and 'Newhall' navel orange in the chloroplast SSR analysis. The genomic sequence similarity rate of 'Fluarongdao Zhoupigan' with mandarin was 36.09%, with mandarin hetemzygosity of 46.50%; the rough ratio of the two main parts was nearly 1:1, except for the unknown (19.11%) and pummelo (1.46%) parts. Thus, 'Fluarongdao Zhoupigan' may be a natural hybrid with sour orange (a sexual hybrid of pummelo and mandarin) as the seed parent and mandarin as the pollen parent.
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