Abstract:
:Potato (Solanum tuberosum L.) is the most important tuber crop worldwide. Efforts are underway to transform the crop from a clonally propagated tetraploid into a seed-propagated, inbred-line-based hybrid, but this process requires a better understanding of potato genome. Here, we report the 1.67-Gb haplotype-resolved assembly of a diploid potato, RH89-039-16, using a combination of multiple sequencing strategies, including circular consensus sequencing. Comparison of the two haplotypes revealed ~2.1% intragenomic diversity, including 22,134 predicted deleterious mutations in 10,642 annotated genes. In 20,583 pairs of allelic genes, 16.6% and 30.8% exhibited differential expression and methylation between alleles, respectively. Deleterious mutations and differentially expressed alleles were dispersed throughout both haplotypes, complicating strategies to eradicate deleterious alleles or stack beneficial alleles via meiotic recombination. This study offers a holistic view of the genome organization of a clonally propagated diploid species and provides insights into technological evolution in resolving complex genomes.
journal_name
Nat Genetjournal_title
Nature geneticsauthors
Zhou Q,Tang D,Huang W,Yang Z,Zhang Y,Hamilton JP,Visser RGF,Bachem CWB,Robin Buell C,Zhang Z,Zhang C,Huang Sdoi
10.1038/s41588-020-0699-xsubject
Has Abstractpub_date
2020-10-01 00:00:00pages
1018-1023issue
10eissn
1061-4036issn
1546-1718pii
10.1038/s41588-020-0699-xjournal_volume
52pub_type
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