文献类型: 外文期刊
作者: Du, Pei 1 ; Fu, Liuyang 1 ; Wang, Qian 1 ; Lang, Tao 2 ; Liu, Hua 1 ; Han, Suoyi 1 ; Li, Chenyu 1 ; Huang, Bingyan 1 ; Qin, Li 1 ; Dai, Xiaodong 1 ; Dong, Wenzhao 1 ; Zhang, Xinyou 1 ;
作者机构: 1.Zhengzhou Univ, Henan Acad Crop Mol Breeding,Shennong Lab, Henan Acad Agr Sci,Key Lab Oil Crops Huang Huai Ha, State Ind Innovat Ctr Biol Breeding,Grad T&R Base,, Zhengzhou 450002, Henan, Peoples R China
2.Sichuan Acad Agr Sci, Inst Biotechnol & Nucl Technol, Chengdu 610061, Sichuan, Peoples R China
关键词: Peanut; Oligo-GISH; Genomic relationship; Variants; Chromosome identification
期刊名称:CROP JOURNAL ( 影响因子:6.6; 五年影响因子:6.5 )
ISSN: 2095-5421
年卷期: 2023 年 11 卷 1 期
页码:
收录情况: SCI
摘要: Oligo probe staining is a low-cost and efficient chromosome identification technique. In this study, oligo genomic in situ hybridization (Oligo-GISH) technology was established in peanut. Peanut A and B subgenome-specific interspersed repeat (IR) oligo probe sets were developed based on clustering and electronic localization of tandem repeat sequences in the reference genome of Tifrunner. The Oligo-GISH kit was then used to perform staining of 15 Arachis species. The A-subgenome probe set stained the chromosomes of A-and E-genome Arachis species, the B-subgenome probe set stained those of B-, F-, K-, and E-genome species, and neither set stained those of H-genome species. These results indicate the relationships among the genomes of these Arachis species. The Oligo-GISH kit was also used for batch staining of the chromosomes of 389 seedlings from the irradiated M1 generation, allowing 67 transloca-tion and deletion lines to be identified. Subsequent Oligo-FISH karyotyping, FISH using single-copy probe libraries, and trait investigation identified seven homozygous chromosomal variants from the M3 gener-ation and suggested that there may be genes on chromosome 4B controlling seed number per pod. These findings demonstrate that the IR probe sets and method developed in this study can facilitate research on distant hybridization and genetic improvement in peanut.(c) 2022 Crop Science Society of China and Institute of Crop Science, CAAS. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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