Complete Chloroplast Genome Sequences of Four Meliaceae Species and Comparative Analyses

International Journal of Molecular Sciences
Malte MaderBirgit Kersten

Abstract

The Meliaceae family mainly consists of trees and shrubs with a pantropical distribution. In this study, the complete chloroplast genomes of four Meliaceae species were sequenced and compared with each other and with the previously published Azadirachta indica plastome. The five plastomes are circular and exhibit a quadripartite structure with high conservation of gene content and order. They include 130 genes encoding 85 proteins, 37 tRNAs and 8 rRNAs. Inverted repeat expansion resulted in a duplication of rps19 in the five Meliaceae species, which is consistent with that in many other Sapindales, but different from many other rosids. Compared to Azadirachta indica, the four newly sequenced Meliaceae individuals share several large deletions, which mainly contribute to the decreased genome sizes. A whole-plastome phylogeny supports previous findings that the four species form a monophyletic sister clade to Azadirachta indica within the Meliaceae. SNPs and indels identified in all complete Meliaceae plastomes might be suitable targets for the future development of genetic markers at different taxonomic levels. The extended analysis of SNPs in the matK gene led to the identification of four potential Meliaceae-specific SNPs as a...Continue Reading

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Citations

Aug 29, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Xiang-Xiao MengWei Sun
Oct 13, 2018·International Journal of Molecular Sciences·Bartolomé Sabater
Jan 20, 2019·BMC Genomics·Kristen N FinchRichard C Cronn
Apr 16, 2021·Applications in Plant Sciences·Wei ZhangHongxing Xiao

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Datasets Mentioned

BETA
KF986530.1

Methods Mentioned

BETA
Illumina sequencing
genotyping

Software Mentioned

SNiPlay
point
OrganellarGenomeDRAW
BlastN
GWB
VISTA
CHLOROBOX
matK
Sequin
CLC Genomics Workbench (

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