New insights into the hybrid origin of Malus toringoides and its close relatives based on a single-copy nuclear gene SbeI and three chloroplast fragments

2014 ◽  
Vol 52 (4) ◽  
pp. 477-486 ◽  
Author(s):  
Liang TANG ◽  
Ju LI ◽  
Si TAN ◽  
Ming-Xia LI ◽  
Xiang MA ◽  
...  
Phytotaxa ◽  
2018 ◽  
Vol 375 (2) ◽  
pp. 135 ◽  
Author(s):  
FATEMEH HOJJATI ◽  
SHAHROKH KAZEMPOUR-OSALOO ◽  
ROBERT PETER ADAMS ◽  
MOSTAFA ASSADI

A total of over 100 accessions representing 11 species of Juniperus in Iran using multiple DNA regions were included in phylogenetic analyses. Analyses of four plastid intergenic spacers (petN-psbM, trnD-trnT, trnL-trnF, trnS-trnG) and nrDNA ITS sequences retrieved Juniperus in Iran as a monophyletic group with two clades corresponding to sections Juniperus and Sabina. Our data support the recognition of J. communis, J. deltoides, J. foetidissima, J. polycarpos var. polycarpos and var. turcomanica, J. sabina and J. seravschanica in Iran. Based on sequences from nrDNA ITS, plastid petN-psbM and single copy nuclear gene LHCA, specimens from the SE Iran that were previously considered to be a part of the J. excelsa complex were shown to be J. seravschanica. Samples from NE Iran were found to be J. polycarpos var. turcomanica and specimens from NW Iran were shown to be J. polycarpos var. polycarpos. Plants belonging to the J. excelsa complex from SW Iran appear to be of hybrid origin between J. polycarpos from N Iran and J. seravschanica from SE Iran. None of the Juniperus samples from Iran were found to be J. excelsa s str., as compared with typical samples from Greece. The sequence data from nrDNA ITS, plastid petN-psbM, trnD-trnT, trnL-trnF, trnS-trnG and single copy nuclear genes (LHCA4, maldehy, myb, CnAIP3 and 4CL) were utilized in this study to identify Iranian samples R, U, K as J. seravschanica.


2012 ◽  
Vol 12 (1) ◽  
pp. 70 ◽  
Author(s):  
Danying Cai ◽  
Flor Rodríguez ◽  
Yuanwen Teng ◽  
Cécile Ané ◽  
Meredith Bonierbale ◽  
...  

2006 ◽  
Vol 39 (1) ◽  
pp. 124-134 ◽  
Author(s):  
Justen B. Whittall ◽  
Andrew Medina-Marino ◽  
Elizabeth A. Zimmer ◽  
Scott A. Hodges

PLoS ONE ◽  
2012 ◽  
Vol 7 (11) ◽  
pp. e48970 ◽  
Author(s):  
Ping-Li Liu ◽  
Qian Wan ◽  
Yan-Ping Guo ◽  
Ji Yang ◽  
Guang-Yuan Rao

Genome ◽  
2011 ◽  
Vol 54 (8) ◽  
pp. 655-662 ◽  
Author(s):  
Genlou Sun ◽  
Xiaodi Zhang

Previous studies have suggested that the H haplome in Elymus could originate from different diploid Hordeum species, however, which diploid species best represent the parental species remains unanswered. The focus of this study seeks to pinpoint the origin of the H genome in Elymus. Allopolyploid Elymus species that contain the StH genome were analyzed together with diploid Hordeum species and a broad sample of diploid genera in the tribe Triticeae using DMC1 sequences. Both parsimony and maximum likelihood analyses well separated the American Hordeum species, except Hordeum brachyantherum subsp. californicum, from the H genome of polyploid Elymus species. The Elymus H-genomic sequences were formed into different groups. Our data suggested that the American Horedeum species, except H. brachyantherum subsp. californicum, are not the H-genomic donor to the Elymus species. Hordeum brevisubulatum subsp. violaceum was the progenitor species to Elymus virescens, Elymus confusus, Elymus lanceolatus, Elymus wawawaiensis, and Elymus caninus. Furthermore, North American H. brachyantherum subsp. californicum was a progenitor of the H genome to Elymus hystrix and Elymus cordilleranus. The H genomes in Elymus canadensis, Elymus sibiricus, and Elymus multisetus were highly differentiated from the H genome in Hordeum and other Elymus species. The H genome in both North American and Eurasian Elymus species was contributed by different Hordeum species.


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