Abstract:
:A high-resolution genetic map is a useful tool for assaying genomic structural variation and clarifying the evolution of polyploid cotton. A total of 36956 SSRs, including 11289 released in previous studies and 25567 which were newly developed based on the genome sequences of G. arboreum and G. raimondii, were utilized to construct a new genetic map. The new high-density genetic map includes 6009 loci and spanned 3863.97 cM with an average distance of 0.64 cM between consecutive markers. Four inversions (one between Chr08 and Chr24, one between Chr09 and Chr23 and two between Chr10 and Chr20) were identified by homology analysis. Comparative genomic analysis between genetic map and two diploid cottons showed that structural variations between the A genome and At subgenome are more extensive than between D genome and Dt subgenome. A total of 17 inversions, seven simple translocations and two reciprocal translocations were identified between genetic map and G. raimondii. Good colinearity was revealed between the corresponding chromosomes of tetraploid G. hirsutum and G. barbadense genomes, but a total of 16 inversions were detected between them. These results will accelerate the process of evolution analysis of Gossipium genus.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Wang WW,Tan ZY,Xu YQ,Zhu AA,Li Y,Yao J,Tian R,Fang XM,Liu XY,Tian YM,Teng ZH,Zhang J,Liu DJ,Liu DX,Shang HH,Liu F,Zhang ZSdoi
10.1038/s41598-017-08006-wsubject
Has Abstractpub_date
2017-08-09 00:00:00pages
7640issue
1issn
2045-2322pii
10.1038/s41598-017-08006-wjournal_volume
7pub_type
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