Plastid Genome Evolution in the Early-Diverging Legume Subfamily Cercidoideae (Fabaceae)

Frontiers in Plant Science
Yin-Huan WangTing-Shuang Yi

Abstract

The subfamily Cercidoideae is an early-branching legume lineage, which consists of 13 genera distributed in the tropical and warm temperate Northern Hemisphere. A previous study detected two plastid genomic variations in this subfamily, but the limited taxon sampling left the overall plastid genome (plastome) diversification across the subfamily unaddressed, and phylogenetic relationships within this clade remained unresolved. Here, we assembled eight plastomes from seven Cercidoideae genera and conducted phylogenomic-comparative analyses in a broad evolutionary framework across legumes. The plastomes of Cercidoideae all exhibited a typical quadripartite structure with a conserved gene content typical of most angiosperm plastomes. Plastome size ranged from 151,705 to 165,416 bp, mainly due to the expansion and contraction of inverted repeat (IR) regions. The order of genes varied due to the occurrence of several inversions. In Tylosema species, a plastome with a 29-bp IR-mediated inversion was found to coexist with a canonical-type plastome, and the abundance of the two arrangements of isomeric molecules differed between individuals. Complete plastome data were much more efficient at resolving intergeneric relationships of Cerc...Continue Reading

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Citations

Jun 25, 2019·PloS One·Dong-Pil JinByoung-Hee Choi
Mar 27, 2020·Frontiers in Plant Science·Oyetola OyebanjiTing-Shuang Yi
Jul 17, 2020·Frontiers in Plant Science·Dong-Min JinTing-Shuang Yi
Jun 9, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Jia GeWeibang Sun
Jun 6, 2020·Scientific Reports·Dong-Min JinTing-Shuang Yi
May 21, 2019·Frontiers in Plant Science·Jacob S StaiSteven B Cannon
Oct 9, 2019·Mitochondrial DNA. Part B, Resources·Shiran GuDianxiang Zhang
Sep 18, 2021·Genome Biology and Evolution·Joseph L M CharboneauMichael J Sanderson

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Datasets Mentioned

BETA
MF135594
MF135601
KY806280
MF135595
KF856619
MF135599
KX792933
MF135600

Methods Mentioned

BETA
PCR
electrophoresis

Software Mentioned

Geneious
GBLOCKS
SE
RAxML
Bowtie2
CLC Genomics Workbench
Bandage Ubuntu dynamic
OrganellarGenomeDRAW
GetOrganelle
Mauve

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