Hexaploid sweetpotato (Ipomoea batatas (L.) Lam.) may not be a true type to either auto- or allopolyploid.

ABSTRACT: To better define the sweetpotato polyploidy, we sought to reconstruct phylogenies of its subgenomes based on hybridization networks that could trace reticulate lineages of differentiated homoeolog triplets of multiple single-copy genes. In search of such homoeolog triplets, we distinguished cDNA variants of 811 single-copy Conserved Ortholog Set II (COSII) genes from two sweetpotato clones into variation partitions specified by corresponding homologs from two I. trifida lines, I. tenuissima and I. littoralis using a phylogenetic partition method, and amplicon variants of the COSII-marker regions from 729 of these genes from two sweetpotato clones into putative homoeoallele groups using haplotype tree and the partition methods referenced by corresponding homologs from I. tenuissima. These a

SUBMITTER: Gao M 

PROVIDER: S-EPMC7053752 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature