Plastid Genomes of the Hemiparasitic Genus<i>Krameria</i>(Zygophyllales) Are Intact and Exhibit Little Relaxation in Selection

Banerjee, Arjan; Schneider, Adam C.; Stefanović, Saša

doi:10.1086/719959

Cited by 4 publications

(2 citation statements)

References 82 publications

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“… 2019 ), Krameria erecta NC_063627 (Banerjee et al. 2022 ), Krameria bicolor NC_043800 (Gonçalves et al. 2019b ), Krameria lanceolata NC_043801 (Gonçalves et al.…”

Section: Resultsmentioning

confidence: 99%

The complete chloroplast genome sequence of Zygophyllum brachypterum (Zygophyllaceae) reveals its distinctive characteristics and evolutionary implication

Wang,

Gao,

et al. 2023

Mitochondrial DNA Part B

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Zygophyllum brachypterum Karelin & Kirilov belongs to Zygophyllaceae and is mainly distributed in the desert regions of Central Asia, Mongolia, and Northwest China. The species is valuable in exploring the adaptations of Zygophyllaceae plants to salt stress in ecological environments. In this study, we report the complete chloroplast (cp) genome of Z. brachypterum . The entire cp genome was 104590 bp in length, with a large single-copy region (LSC, 79170 bp), a small single-copy region (SSC, 16778 bp), and two inverted repeats (IRa/IRb) of 4321 bp each. A total of 106 genes were detected, among which seven were located in the IRs, and 65, 30, and 4 were protein-coding, tRNA, and rRNA genes, respectively. Notably, eleven genes encoding the subunits of NAD(P)H dehydrogenase complex (NDH) were absent. Phylogenetic analysis indicated that Z. brachypterum belonged to Zygophylloideae (Zygophyllaceae). Furthermore, it was closely related to Z. fabago and Z. kansuense.

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“… 2019 ), Krameria erecta NC_063627 (Banerjee et al. 2022 ), Krameria bicolor NC_043800 (Gonçalves et al. 2019b ), Krameria lanceolata NC_043801 (Gonçalves et al.…”

Section: Resultsmentioning

confidence: 99%

The complete chloroplast genome sequence of Zygophyllum brachypterum (Zygophyllaceae) reveals its distinctive characteristics and evolutionary implication

Wang,

Gao,

et al. 2023

Mitochondrial DNA Part B

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“…In parasites, plastid genomes commonly lose genes, and in many cases, highly reduced plastids have lost their photosynthetic capability (e.g., de Koning & Keeling, 2006; Kayama et al, 2020). Functional and physical reductions in plastid genomes occur over time, and the degree of degradation in parasitic plastid genomes reflects the transition from autotrophy to parasitism, where organisms with intact plastid genomes are less reliant on their hosts (for nutrition) than parasites with highly reduced plastid genomes (Banerjee et al, 2022; Wicke & Naumann, 2018). The early stages of this transition are of interest for identifying any patterns of gene loss that may be common among parasites.…”

Section: Introductionmentioning

confidence: 99%

Gene‐rich plastid genomes of two parasitic red algal species, Laurencia australis and L. verruciformis (Rhodomelaceae, Ceramiales), and a taxonomic revision of Janczewskia

Preuss,

Díaz‐Tapia,

Verbruggen

et al. 2023

Journal of Phycology

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Parasitic red algae are an interesting system for investigating the genetic changes that occur in parasites. These parasites have evolved independently multiple times within the red algae. The functional loss of plastid genomes can be investigated in these multiple independent examples, and fine‐scale patterns may be discerned. The only plastid genomes from red algal parasites known so far are highly reduced and missing almost all photosynthetic genes. Our study assembled and annotated plastid genomes from the parasites Janczewskia tasmanica and its two Laurencia host species (Laurencia elata and one unidentified Laurencia sp. A25) from Australia and Janczewskia verruciformis, its host species (Laurencia catarinensis), and the closest known free‐living relative (Laurencia obtusa) from the Canary Islands (Spain). For the first time we show parasitic red algal plastid genomes that are similar in size and gene content to free‐living host species without any gene loss or genome reduction. The only exception was two pseudogenes (moeB and ycf46) found in the plastid genome of both isolates of J. tasmanica, indicating potential for future loss of these genes. Further comparative analyses with the three highly reduced plastid genomes showed possible gene loss patterns, in which photosynthetic gene categories were lost followed by other gene categories. Phylogenetic analyses did not confirm monophyly of Janczewskia, and the genus was subsumed into Laurencia. Further investigations will determine if any convergent small‐scale patterns of gene loss exist in parasitic red algae and how these are applicable to other parasitic systems.

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A comparative study across the parasitic plants of Cuscuta subgenus Grammica (Convolvulaceae) reveals a possible loss of the plastid genome in its section Subulatae

Banerjee

Stefanović

2023

Planta

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Plastid Genomes of the Hemiparasitic GenusKrameria(Zygophyllales) Are Intact and Exhibit Little Relaxation in Selection

Cited by 4 publications

References 82 publications

The complete chloroplast genome sequence of Zygophyllum brachypterum (Zygophyllaceae) reveals its distinctive characteristics and evolutionary implication

The complete chloroplast genome sequence of Zygophyllum brachypterum (Zygophyllaceae) reveals its distinctive characteristics and evolutionary implication

Gene‐rich plastid genomes of two parasitic red algal species, Laurencia australis and L. verruciformis (Rhodomelaceae, Ceramiales), and a taxonomic revision of Janczewskia

A comparative study across the parasitic plants of Cuscuta subgenus Grammica (Convolvulaceae) reveals a possible loss of the plastid genome in its section Subulatae

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