+ Translate
+ Most Popular
The pigeon tick (Argas reflexus): its biology, ecology, and epidemiological aspects
Prevalence of hemoglobin abnormalities in Kebili (Tunisian South)
Lipogranuloma: a preventable complication of dacryocystorhinostomy
Value of basal plasma cortisol assays in the assessment of pituitary-adrenal insufficiency
Bees from the Belgian Congo. The acraensis group of Anthophora
Placing gingival retraction cord
Total serum IgE, allergy skin testing, and the radioallergosorbent test for the diagnosis of allergy in asthmatic children
Acariens plumicoles Analgesoidea parasites des oiseaux du Maroc
Injuries of terminal phalanges of the fingers in children
Biology of flowering and nectar production in pear (Pyrus communis)
Das Reliktvorkommen der Aspisviper (Vipera aspis L.) im Schwarzwald
Hydrological modelling of drained blanket peatland
Pathologic morphology and clinical significance of the anomalous origin of the left circumflex coronary artery from the right coronary artery. General review and autopsy analysis of 30 cases
Cyto genetic analyses of lymphocyte cultures after exposure to calcium cyclamate
Axelrodia riesei, a new characoid fish from Upper Rio Meta in Colombia With remarks concerning the genus Axelrodia and description of a similar, sympatric, Hyphessobrycon-species
Favorable evolution of a case of tuberculosis of pancreas under antibiotic action
RIFM fragrance ingredient safety assessment, Valencene, CAS Registry Number 4630-07-3
Parenteral microemulsions: an overview
Temperate pasture: management for grazing and conservation
Evaluation of a new coprocessed compound based on lactose and maize starch for tablet formulation
Thermal expansion and cracking of three confined water-saturated igneous rocks to 800C
Revision of the genera of the tribe Stigmoderini (Coleoptera: Buprestidae) a discussion of phylogenetic relationships
Anal tuberculosis. Report of a case
Gastric tuberculosis in the past and present
Adaptive responses of the cardiovascular system to prolonged spaceflight conditions: assessment with Holter monitoring

Evolutionary dynamics of the Pgk1 gene in the polyploid genus Kengyilia (Triticeae: Poaceae) and its diploid relatives

Evolutionary dynamics of the Pgk1 gene in the polyploid genus Kengyilia (Triticeae: Poaceae) and its diploid relatives

Plos one 7(2): E31122

ISSN/ISBN: 1932-6203

PMID: 22363562

DOI: 10.1371/journal.pone.0031122

The level and pattern of nucleotide variation in duplicate gene provide important information on the evolutionary history of polyploids and divergent process between homoeologous loci within lineages. Kengyilia is a group of allohexaploid species with the StYP genomic constitutions in the wheat tribe. To investigate the evolutionary dynamics of the Pgk1 gene in Kengyilia and its diploid relatives, three copies of Pgk1 homoeologues were isolated from all sampled hexaploid Kengyilia species and analyzed with the Pgk1 sequences from 47 diploid taxa representing 18 basic genomes in Triticeae. Sequence diversity patterns and genealogical analysis suggested that (1) Kengyilia species from the Central Asia and the Qinghai-Tibetan plateau have independent origins with geographically differentiated P genome donors and diverged levels of nucleotide diversity at Pgk1 locus; (2) a relatively long-time sweep event has allowed the Pgk1 gene within Agropyron to adapt to cold climate triggered by the recent uplifts of the Qinghai-Tibetan Plateau; (3) sweep event and population expansion might result in the difference in the d(N)/d(S) value of the Pgk1 gene in allopatric Agropyron populations, and this difference may be genetically transmitted to Kengyilia lineages via independent polyploidization events; (4) an 83 bp MITE element insertion has shaped the Pgk1 loci in the P genome lineage with different geographical regions; (5) the St and P genomes in Kengyilia were donated by Pseudoroegneria and Agropyron, respectively, and the Y genome is closely related to the Xp genome of Peridictyon sanctum. The interplay of evolutionary forces involving diverged natural selection, population expansion, and transposable events in geographically differentiated P genome donors could attribute to geographical differentiation of Kengyilia species via independent origins.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 053105857

Download citation: RISBibTeXText

Related references

Phylogeny and molecular evolution of the Dmc1 gene in the polyploid genus Leymus (Triticeae: Poaceae) and its diploid relatives. Journal of Systematics and Evolution 54(3): 250-263, 2016

The 5S rRNA gene diversity in Kengyilia rigidula (Keng and S.L. Chen) J.L. Yang, Yen, and Baum (Poaceae: Triticeae): possible contribution of the H genome to the origin of Kengyilia. Genome 43(1): 79-85, 2000

Phylogeny and molecular evolution of the DMC1 gene in the polyploid genus Roegneria and its affinitive genera (Poaceae: Triticeae). Botanical Journal of the Linnean Society 186(1): 129-142, 2017

Molecular phylogeny and maternal progenitor implication in the genus Kengyilia (Triticeae: Poaceae): Evidence from COXII intron sequences. Biochemical Systematics and Ecology 38(2): 202-209, 2010

Molecular evolution and diversity of dimeric alpha-amylase inhibitor gene in Kengyilia species (Triticeae: Poaceae). Gene 529(2): 262-268, 2013

Phylogenetic relationships among the polyploid and diploid Aegilops species inferred from the nuclear 5S rDNA sequences (Poaceae: Triticeae). Genome 55(3): 177-193, 2012

Three new species of the genus Kengyilia (Poaceae: Triticeae) from West China and new combinations of related species. Canadian Journal of Botany 71(2): 339-345, 1993

Evolutionary patterns of plastome uncover diploid-polyploid maternal relationships in Triticeae. Molecular Phylogenetics and Evolution 149: 106838, 2020

The molecular diversity of the 5S rRNA gene in Kengyilia alatavica (Drobov) J.L. Yang, Yen & Baum (Poaceae:Triticeae): potential genomic assignment of different rDNA units. Genome 40(2): 215-228, 1997

Cytogenetic analyses in Kengyilia laxiflora (Poaceae, Triticeae). Plant Systematics and Evolution 212(1/2): 79-86, 1998

Biosystematic studies of Kengyilia stenachyra (Poaceae: Triticeae). Acta Botanica Yunnanica 21(4): 449-454, 1999

New taxa, new combinations, and observations in Kengyilia (Poaceae: Triticeae). Novon 8(1): 94-100, 1998

C-banding analysis of eight species of Kengyilia (Poaceae: Triticeae). Journal of Applied Genetics 49(1): 11-21, 2008

Biosystematic studies of Kengyilia melanthera and K. kokonorica (Poaceae: Triticeae). Acta Phytotaxonomica Sinica 37(2): 117-124, 1999

Kengyilia guidenensis (Poaceae: Triticeae), a new species from western China. Novon 5(4): 395-397, 1995