Genetic diversity and phylogenetic relationships of seven Amorphophallus species in southwestern China revealed by chloroplast DNA sequences

2017 ◽  
Vol 29 (5) ◽  
pp. 679-686 ◽  
Author(s):  
Yong Gao ◽  
Si Yin ◽  
Huixiao Yang ◽  
Lifang Wu ◽  
Yuehui Yan
Keyword(s):  
Genetic Diversity ◽  
Chloroplast Dna ◽  
Dna Sequences ◽  
Phylogenetic Relationships ◽  
Southwestern China ◽  
Chloroplast Dna Sequences

Monophyly and Phylogenetic Relationships in Lymania (Bromeliaceae: Bromelioideae) Based on Morphology and Chloroplast DNA Sequences

2007 ◽  
Vol 32 (2) ◽  
pp. 264-270 ◽  
Author(s):  
Leandro de Oliveira Furtado de Sousa ◽  
Tânia Wendt ◽  
Gregory K. Brown ◽  
Dorothy E. Tuthill ◽  
Timothy M. Evans
Keyword(s):  
Chloroplast Dna ◽  
Dna Sequences ◽  
Phylogenetic Relationships ◽  
Chloroplast Dna Sequences

Phylogenetic Relationships Among the Diplolepideous-alternate Mosses (Bryidae) Inferred from Nuclear and Chloroplast DNA Sequences

2000 ◽  
Vol 103 (2) ◽  
pp. 224-241 ◽  
Author(s):  
Cymon J. Cox ◽  
Bernard Goffinet ◽  
Angela E. Newton ◽  
A. Jonathan Shaw ◽  
Terry A. J. Hedderson
Keyword(s):  
Chloroplast Dna ◽  
Dna Sequences ◽  
Phylogenetic Relationships ◽  
Chloroplast Dna Sequences

scholarly journals Genetic Diversity of Paeonia rockii (Flare Tree Peony) Germplasm Accessions Revealed by Phenotypic Traits, EST-SSR Markers and Chloroplast DNA Sequences

Forests ◽  
2020 ◽  
Vol 11 (6) ◽  
pp. 672
Author(s):  
Xin Guo ◽  
Fangyun Cheng ◽  
Yuan Zhong
Keyword(s):  
Genetic Diversity ◽  
Chloroplast Dna ◽  
Ssr Markers ◽  
Dna Sequences ◽  
Genetic Background ◽  
Background Information ◽  
Phenotypic Traits ◽  
Tree Peony ◽  
Chloroplast Dna Sequences ◽  
Paeonia Rockii

Research Highlights: This study, based on the first collection of cultivated Paeonia rockii (flare tree peony, FTP) germplasm across the main distribution area by our breeding desires, comprehensively evaluates these accessions by using phenotypic traits, expressed sequence tag (EST)-simple sequence repeat (SSR) markers and chloroplast DNA sequences (cpDNA). The results show that these accessions collected selectively by us can represent the genetic background information of FTP as a germplasm of tree crops. Background and Objectives: FTP has high cultural, ornamental and medicinal value traditionally, as well as recently presenting a significance as an emerging edible oil with high α-linolenic acid contents in the seeds. The objectives of this study are to reveal the characteristics of the genetic diversity of FTP, as well as to provide scientific suggestions for the utilization of tree peony breeding and the conservation of germplasm resource. Materials and Methods: Based on the phenotypic traits, EST-SSR markers and chloroplast DNA sequence variation, we studied the diversity of a newly established population of 282 FTP accessions that were collected and propagated by ourselves in our breeding project in recent years. Results: (1) There was an abundant variation in phenotype of the accessions, and the phenotypic variation was evenly distributed within the population, without significant hierarchical structure, (2) the EST-SSR data showed that these 282 accessions had relatively high genetic diversity, in which a total of 185 alleles were detected in 34 pairs of primers. The 282 accessions were divided into three distinct groups, and (3) the chloroplast DNA sequences (cpDNA) data indicated that these accessions had a higher genetic diversity than the population level and a lower genetic diversity than the species level of wild P. rockii, and the existing spatial genetic structure of these accessions can be divided into two branches. Conclusions: From the results of the three analyses, we found that these accessions can fully reflect the genetic background information of FTP germplasm resources, so their protection and utilization will be of great significance for genetic improvement of woody peonies.

scholarly journals Phylogenetic Relationships of Asclepias (Apocynaceae) Inferred from Non-coding Chloroplast DNA Sequences

2011 ◽  
Vol 36 (4) ◽  
pp. 1008-1023 ◽  
Author(s):  
Mark Fishbein ◽  
David Chuba ◽  
Chris Ellison ◽  
Roberta J. Mason-Gamer ◽  
Steven P. Lynch
Keyword(s):  
Chloroplast Dna ◽  
Dna Sequences ◽  
Phylogenetic Relationships ◽  
Chloroplast Dna Sequences

Towards a Monophyletic Hoya (Marsdenieae, Apocynaceae): Inferences from the Chloroplast trnL Region and the rbcL-atpB Spacer

2006 ◽  
Vol 31 (3) ◽  
pp. 586-596 ◽  
Author(s):  
Livia Wanntorp ◽  
Alexander Kocyan ◽  
Ruurd van Donkelaar ◽  
Susanne S. Renner
Keyword(s):  
Chloroplast Dna ◽  
Dna Sequences ◽  
Phylogenetic Relationships ◽  
Phylogenetic Signal ◽  
Flower Morphology ◽  
Monophyletic Group ◽  
Chloroplast Dna Sequences ◽  
India And China

The delimitation of the genus Hoya, with at least 200 species distributed from India and China to Australia, from its closest relatives in the Marsdenieae has long been problematic, precluding an understanding of the evolution and biogeography of the genus. Traditional circumscriptions of genera in the Hoya alliance have relied on features of the flower, but these overlap extensively between clades and may be evolutionarily labile. We obtained chloroplast DNA sequences to infer the phylogenetic relationships among a sample of 35 taxa of Hoya and 11 other genera in the tribe Marsdenieae, namely Absolmsia, Cionura, Dischidia, Dregea, Gongronema, Gunnessia, Madangia, Marsdenia, Micholitzia, Rhyssolobium, and Telosma. Trees were rooted with representatives of Asclepiadeae, Ceropegieae, Fockeeae, Periplocoideae, and Secamonoideae. Hoya and Dischidia form a monophyletic group, but the phylogenetic signal in the chloroplast data analyzed here was insufficient to statistically support the mutual monophyly of the two genera. A monophyletic Hoya, however, must include the monotypic Absolmsia, Madangia, and Micholitzia, a result congruent with their flower morphology. The data also identified several wellsupported groups within Hoya. The morphologically unusual Gunnessia belongs firmly in the Marsdenieae, but it is not close to Hoya and Dischidia.

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