Comparative analysis of chloroplast genomes of the genus Citrus and its close relatives. (2nd January 2017)

• Record Type: Journal Article
• Authors: Liu, Xiaogang; Wu, Hongkun; Luo, Yan; Xi, Wanpeng; Zhou, Zhiqin
• Is Part Of: Mitochondrial DNA. Volume 28:Number 1(2017)
• Page Start: 33
• Page End: 36
• Publication Date: 2017-01-02
• Subjects: Chloroplast genome -- Citrus -- high-throughput sequencing
• DOI: 10.3109/19401736.2015.1106528
• Languages: English
• ISSNs: 2380-2359

Abstract

Abstract: The genus Citrus and its close relatives are economically and nutritionally important fruit trees. However, the huge controversy over the phylogeny of key wild species, as well as the genetic relationship between the cultivated species and their putative wild progenitors, remains unresolved. Comparative analyses of chloroplast (cp) genomes have been useful in resolving various phylogenetic issues. Thus far, the cp genomes of only two Citrus species have been sequenced. In this study, we sequenced six complete cp genomes, four belonging to the genus Citrus, and two belonging to the genera Fortunella and Poncirus, respectively. These newly sequenced genomes together with the two publicly available were used for comparative analyses of the genus Citrus and its close relatives. All eight cp genomes share similar basic structure, gene order and gene content. Phylogenetic analyses supported the monophyly of the three genera in the order Sapindales within the major clade Malvidae.