Studies on genetic diversity and phylogenetic relationships of limpograss (Hemarthria altissima) and related species based on combined chloroplast DNA intergenic spacer data

2016 ◽  
Vol 69 ◽  
pp. 91-100 ◽  
Author(s):  
Jian Zhang ◽  
Xiu Huang ◽  
De-jun Huang ◽  
Yu Zhang ◽  
Lin-kai Huang ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Chloroplast Dna ◽  
Related Species ◽  
Phylogenetic Relationships ◽  
Intergenic Spacer ◽  
Hemarthria Altissima

Revisiting phylogenetic relationships in Phoradendreae (Viscaceae): utility of the trnL-F region of chloroplast DNA and presence of a homoplasious inversion in the intergenic spacer

Botany ◽  
2017 ◽  
Vol 95 (3) ◽  
pp. 247-258 ◽  
Author(s):  
Vanessa E.T.M. Ashworth
Keyword(s):  
Chloroplast Dna ◽  
Phylogenetic Relationships ◽  
Nucleotide Substitution ◽  
Strong Support ◽  
Intergenic Spacer ◽  
Nuclear Ribosomal Dna ◽  
Morphological Data ◽  
Maximum Parsimony Analysis ◽  
Tropical Species ◽  
F Region

The utility of the trnL-F region of the chloroplast DNA for inferring relationships in 26 taxa in the mistletoe tribe Phoradendreae (Viscaceae) was compared with that of sequences from three regions of the nuclear ribosomal DNA (nrDNA). Chloroplast- and nuclear-inferred phylogenies generally were congruent based on maximum parsimony analysis of nucleotide substitution data. Results suggested that the intron and intergenic spacer of the chloroplast partition were not sufficiently variable to resolve phylogenetic relationships among either close relatives or more distantly related species. The distribution of insertions and deletions generally supported the phylogeny inferred from nucleotide substitution data. However, presence or absence of a 59-nucleotide inversion in the trnL-F intergenic spacer of eight Phoradendron species showed no agreement with the topology inferred from molecular and morphological data. Combined analyses of the nuclear partitions and the chloroplast region (with the homoplasious inversion inserted in reverse orientation) provided strong support for P. californicum as sister to a clade uniting North American species and not as sister to a clade comprising more tropical species. Consistent with results from previous studies using nrDNA, a lineage in the Phoradendron leucarpum complex (comprising subsp. leucarpum and macrophyllum) was strongly supported, but subspecies tomentosum was not confidently placed.

scholarly journals Phylogenetic Relationships and Genetic Diversity among Orobanche cumana Wallr. and O. cernua L. (Orobanchaceae) Populations in the Iberian Peninsula

Helia ◽  
2014 ◽  
Vol 37 (61) ◽  
Author(s):  
Rocío Pineda-Martos ◽  
Leonardo Velasco ◽  
Antonio J. Pujadas-Salvà ◽  
José M. Fernández-Martínez ◽  
Begoña Pérez-Vich
Keyword(s):  
Genetic Diversity ◽  
Iberian Peninsula ◽  
Related Species ◽  
Phylogenetic Relationships ◽  
Closely Related Species ◽  
Orobanche Cumana ◽  
Allochthonous Species

Abstractis found in the Iberian Peninsula as an allochthonous species parasitizing exclusively sunflower, in contrast to the closely related species

Genetic diversity of Hemarthria altissima and its related species by EST-SSR and SCoT markers

2014 ◽  
Vol 57 ◽  
pp. 338-344 ◽  
Author(s):  
Xiu Huang ◽  
Xinquan Zhang ◽  
Linkai Huang ◽  
Yingmei Ma ◽  
Guohua Yin ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Related Species ◽  
Hemarthria Altissima

scholarly journals Two Complete Mitochondrial Genomes of Mileewinae (Hemiptera: Cicadellidae) and a Phylogenetic Analysis

Insects ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 668
Author(s):  
Tinghao Yu ◽  
Yalin Zhang
Keyword(s):  
Phylogenetic Analysis ◽  
Phylogenetic Relationships ◽  
Phylogenetic Trees ◽  
Strong Support ◽  
Intergenic Spacer ◽  
Taxonomic Status ◽  
Start Codon ◽  
Gene Arrangement ◽  
Mitochondrial Genomes ◽  
Protein Coding

More studies are using mitochondrial genomes of insects to explore the sequence variability, evolutionary traits, monophyly of groups and phylogenetic relationships. Controversies remain on the classification of the Mileewinae and the phylogenetic relationships between Mileewinae and other subfamilies remain ambiguous. In this study, we present two newly completed mitogenomes of Mileewinae (Mileewa rufivena Cai and Kuoh 1997 and Ujna puerana Yang and Meng 2010) and conduct comparative mitogenomic analyses based on several different factors. These species have quite similar features, including their nucleotide content, codon usage of protein genes and the secondary structure of tRNA. Gene arrangement is identical and conserved, the same as the putative ancestral pattern of insects. All protein-coding genes of U. puerana began with the start codon ATN, while 5 Mileewa species had the abnormal initiation codon TTG in ND5 and ATP8. Moreover, M. rufivena had an intergenic spacer of 17 bp that could not be found in other mileewine species. Phylogenetic analysis based on three datasets (PCG123, PCG12 and AA) with two methods (maximum likelihood and Bayesian inference) recovered the Mileewinae as a monophyletic group with strong support values. All results in our study indicate that Mileewinae has a closer phylogenetic relationship to Typhlocybinae compared to Cicadellinae. Additionally, six species within Mileewini revealed the relationship (U. puerana + (M. ponta + (M. rufivena + M. alara) + (M. albovittata + M. margheritae))) in most of our phylogenetic trees. These results contribute to the study of the taxonomic status and phylogenetic relationships of Mileewinae.

Genetic diversity of Amomum xanthioides and its related species from Southeast Asia and China

2021 ◽  
Author(s):  
Mikako Sone ◽  
Shu Zhu ◽  
Xiao Cheng ◽  
Sounthone Ketphanh ◽  
Swe Swe ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Southeast Asia ◽  
Related Species
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