The chicken or the egg? Plastome evolution and an independent loss of the inverted repeat in papilionoid legumes

Chaehee Lee, In-Su Choi, Domingos Cardoso, Haroldo De Lima, Luciano De Queiroz, Martin Wojciechowski, Robert Jansen & Tracey Ruhlman
The plastid genome (plastome), while surprisingly constant in gene order and content across most photosynthetic angiosperms, exhibits variability in several unrelated lineages. During the diversification history of the legume family Fabaceae, plastomes have undergone many rearrangements, including inversions, expansion, contraction and loss of the typical inverted repeat (IR), gene loss and repeat accumulation in both shared and independent events. While legume plastomes have been the subject of study for some time, most work has focused...
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