Premium
Cover Image: Polyploidy and evolution
Publication year - 2019
Publication title -
journal of integrative plant biology
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 2.734
H-Index - 83
eISSN - 1744-7909
pISSN - 1672-9072
DOI - 10.1111/jipb.12776
Subject(s) - theobroma , genome , biology , evolutionary biology , chloroplast dna , genetics , botany , gene
Whole genome multiplication (WGM) is an important factor in the evolution of many plant groups. In this issue, Conover et al. (12–31) studied genome evolution in the cotton family, Malvaceae. Examination of pairwise synonymous distances within each genome suggests at least one WGM in the ancestry of all subfamilies except Grewioideae ( Corchorus ), Byttnerioideae ( Theobroma ), and Dombeyoideae ( Dombeya ). Reconciling this result with the plastome tree (shown) and thousands of nuclear gene trees reveals a complex history including at least one allopolyploidy event.