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Huanhuan Li, Bo Jiang, Jingchang Wang, Yuqing Lu, Jinpeng Zhang, Cuili Pan, Xinming Yang, Xiuquan Li, Weihua Liu, Lihui Li
A physical map of Agropyron cristatum 2P chromosome was constructed for the first time and the novel powdery mildew resistance gene(s) from chromosome 2P was(were) also mapped. Agropyron cristatum (L.) Gaertn. (2n = 28, PPPP), a wild relative of common wheat, is highly resistant to powdery mildew. Previous studies showed that wheat-A. cristatum 2P disomic addition line II-9-3 displayed high resistance to powdery mildew, and the resistance was attributable to A. cristatum chromosome 2P. To utilize and physically map the powdery mildew resistance gene(s), 15 wheat-A...
October 22, 2016: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
Liqiang Song, Yuqing Lu, Jinpeng Zhang, Cuili Pan, Xinming Yang, Xiuquan Li, Weihua Liu, Lihui Li
Agropyron cristatum (2n = 4x = 28, PPPP) is a wild relative of common wheat and confers several desirable agronomic traits to wheat, such as high grain number per spike and enhanced resistance to certain diseases. Development of wheat - A. cristatum 6P translocation lines facilitates its utilization in wheat improvement. In this study, 26 wheat - A. cristatum 6P translocation lines were characterized by in situ hybridization (ISH) and 6P-specific sequence-tagged-site (STS) markers. These translocation lines carried different 6P chromosomal segments, which covered the whole 6P chromosome...
October 2016: Genome Génome / Conseil National de Recherches Canada
Klaudia Kruppa, Márta Molnár-Láng
Multicolour genomic in situ hybridization (mcGISH) using total genomic DNA probes from Thinopyrum bessarabicum (Săvulescu & Rayss, 1923) Á. Löve, 1984 (genome J(b) or E(b), 2n = 14), and Pseudoroegneria spicata (Pursh, 1814) Á. Löve, 1980 (genome St, 2n = 14) was used to characterize the mitotic metaphase chromosomes of a synthetic hybrid of Thinopyrum intermedium (Host, 1805) Barkworth & D.R. Dewey, 1985 and Thinopyrum ponticum (Podpěra, 1902) Z.-W. Liu et R.-C.Wang, 1993 named "Agropyron glael" and produced by N...
2016: Comparative Cytogenetics
Mingjie Lu, Yuqing Lu, Huanhuan Li, Cuili Pan, Yong Guo, Jinpeng Zhang, Xinming Yang, Xiuquan Li, Weihua Liu, Lihui Li
Wheat-Agropyron cristatum 7P disomic addition line Ⅱ-5-1, derived from the distant hybridization between A. cristatum (2n = 4x = 28, PPPP) and the common wheat cv. Fukuhokomugi (Fukuho), displays numerous desirable agronomic traits, including enhanced thousand-grain weight, smaller flag leaf, and enhanced tolerance to drought. In order to transfer these traits into common wheat, Ⅱ-5-1 was induced by 60Co-γ ray, leading to the creation of 18 translocation lines and three deletion lines. Genomic in situ hybridization (GISH) and fluorescence in situ hybridization (FISH) indicated that multiple wheat chromosomes were involved in the translocation events, including chromosome 2A, 3A, 5A, 7A, 3B, 5B, 7B, 3D and 7D...
2016: PloS One
Jing Zhang, Jinpeng Zhang, Weihua Liu, Xiaoyang Wu, Xinming Yang, Xiuquan Li, Yuqing Lu, Lihui Li
This study explored 6P chromosomal translocations in wheat, and determined the effects of 6P intercalary chromosome segments on kernel number per wheat spike. Exploiting and utilising gene(s) from wild relative species has become an essential strategy for wheat crop improvement. In the translocation line Pubing2978, the intercalary 6P chromosome segment from Agropyron cristatum (L.) Gaertn. (2n = 4x = 28, PPPP) carried valuable multi-kernel gene(s) and was selected from the offspring of the common wheat plant Fukuho and the irradiated wheat-A...
October 2016: Planta
S P Martynova, T V Dobrotvorskaya, V A Krupnov
During the last 80 years, in order to increase the genetic variability of wheat, translocations containing nine elongated wheatgrass (Agropyron elongatum) and eight intermediate wheatgrass (Agropyron intermedium) genes, which control resistance to pathogens, were transferred to this crop culture. Genealogical and statistical analysis of 1500 varieties developed using the wheatgrass gave evidence of the continuing increase in the proportion of such varieties in the total number of wheat varieties over the last half-century...
February 2016: Genetika
Liming Lai, Lijun Chen, Lianhe Jiang, Jihua Zhou, Yuanrun Zheng, Hideyuki Shimizu
Germination cues reflect the conditions under which a species is likely to succeed in recruitment. Therefore, knowledge of the seed germination characteristics of key plant species in desertified areas is essential for restoration. The aims of this study were to evaluate the seed germination responses of seven native species, and to explore the implications for vegetation restoration. Seeds of seven desert species were sown in Petri dishes and subjected to various temperature and light conditions. The seeds germinated well at day/night temperatures of 25/15 °C and 30/20 °C but poorly at 35/25 °C...
2016: AoB Plants
Yuqing Lu, Miaomiao Yao, Jinpeng Zhang, Liqiang Song, Weihua Liu, Xinming Yang, Xiuquan Li, Lihui Li
A novel broad-spectrum powdery mildew resistance gene PmPB74 was identified in wheat- Agropyron cristatum introgression line Pubing 74. Development of wheat cultivars with broad-spectrum, durable resistance to powdery mildew has been restricted by lack of superior genetic resources. In this study, a wheat-A. cristatum introgression line Pubing 74, originally selected from a wide cross between the common wheat cultivar Fukuhokomugi (Fukuho) and Agropyron cristatum (L.) Gaertn (2n = 4x = 28; genome PPPP), displayed resistance to powdery mildew at both the seedling and adult stages...
September 2016: Planta
Klaudia Kruppa, Edina Türkösi, Marianna Mayer, Viola Tóth, Gyula Vida, Éva Szakács, Márta Molnár-Láng
A Thinopyrum intermedium × Thinopyrum ponticum synthetic hybrid wheatgrass is an excellent source of leaf and stem rust resistance produced by N.V.Tsitsin. Wheat line Mv9kr1 was crossed with this hybrid (Agropyron glael) in Hungary in order to transfer its advantageous agronomic traits into wheat. As the wheat parent was susceptible to leaf rust, the transfer of resistance was easily recognizable in the progenies. Three different partial amphiploid lines with leaf rust resistance were selected from the wheat/Thinopyrum hybrid derivatives by multicolour genomic in situ hybridization...
February 27, 2016: Journal of Applied Genetics
Liqiang Song, Yuqing Lu, Jinpeng Zhang, Cuili Pan, Xinming Yang, Xiuquan Li, Weihua Liu, Lihui Li
Genetically stable deletion lines of Agropyron cristatum chromosome 6P in common wheat background were generated, which allowed for physical mapping of 255 6P-specific STS markers and leaf rust resistance gene(s). Chromosomal deletion lines are valuable tools for gene discovery and localization. The chromosome 6P of Agropyron cristatum (2n = 4x = 28, PPPP) confers many desirable agronomic traits to common wheat, such as higher grain number per spike, multiple fertile tiller number, and enhanced resistance to certain diseases...
May 2016: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
T G B Y Ao, M L Lang, Y Q Li, Y Zhao, L C Wang, X J Yang
In this study, a cysteine protease gene (MwCP) from Agropyron mongolicum Keng was isolated using RACE. Sequence analysis indicated that MwCP was 1473 bp, and it contained a 1134-bp open reading frame, which encoded 377 amino acids with a 24-amino acid N-terminal signal peptide. The results indicated that the MwCP protein was a new member of the papain C1A family, and it was predicted to be an extracellular, secretory stable hydrophilic protein. The secondary structure of MwCP was mainly composed of α-helices and random coils, and the space structure primarily contained α-helices, β-sheets, and β-turns...
2016: Genetics and Molecular Research: GMR
Huanhuan Li, Mingjie Lv, Liqiang Song, Jinpeng Zhang, Ainong Gao, Lihui Li, Weihua Liu
Agropyron cristatum (L.) Gaertn. (2n = 28, PPPP), a wild relative of common wheat, possesses many potentially valuable traits that can be transferred to common wheat through breeding programs. The wheat-A. cristatum disomic addition and translocation lines can be used as bridge materials to introduce alien chromosomal segments to wheat. Wheat-A. cristatum 2P disomic addition line II-9-3 was highly resistant to powdery mildew and leaf rust, which was reported in our previous study. However, some translocation lines induced from II-9-3 have not been reported...
2016: PloS One
Anna Crescenti, Francesc Puiggròs, Arnau Colomé, Josep Antón Poch, Antoni Caimari, Josep Maria Bas, Noemí Boqué, Lluís Arola
OBJECTIVE: To determine the effect of a botanical formulation of Herniaria glabra, Agropyron repens, Equisetum arvense, and Sambucus nigra as a preventive agent in an experimentally induced nefrolithiasis model in rats. METHODS: Six groups of six Wistar male rats each were induced for nefrolithiasis by treatment with 0.75% ethylene glycol (EG) and 1% ammonium chloride for three days and then EG only for 15 days. One group was treated with placebo (control group) and the other groups (treated groups) were treated with 30 mg/Kg, 60 mg/Kg, 125 mg/Kg, 250 mg/Kg and 500 mg/Kg of the plant extract formulation (PEF)...
December 2015: Archivos Españoles de Urología
Behlül Güler, Gülfidan Kümüştekin, Emin Uğurlu
ETHNOBOTANICAL RELEVANCE: The aim of this study is to document and describe important ethnobotanical features of 14 villages of Turgutlu (Manisa - Turkey). MATERIALS AND METHODS: The regular ethnobotanical surveys were carried out during different seasons in the years 2009 and 2010 in 14 villages of Turgutlu. The data was collected from 91 village inhabitants using semi-structured interviews. Use value (UV) was used to calculate the relative importance of species known by the inhabitants...
December 24, 2015: Journal of Ethnopharmacology
Justyna Lalak, Agnieszka Kasprzycka, Danuta Martyniak, Jerzy Tys
The aim of this work was to analyze the impact of three different moisture contents (MC), at 45% MC, 65% MC, 75% MC, on the degradation of cellulose, hemicellulose, and lignin during fungi treatment by Flammulina velutipes of Agropyron elongatum 'BAMAR' and on biogas production. The analysis of chemical composition shown that F. velutipes had greater selectivity for lignin biodegradation with the highest hemicellulose and lignin removal at 29.1% and 35.4%, respectively, and lowest cellulose removal (20.48%) at 65% MC...
January 2016: Bioresource Technology
W Szydło, G Hein, E Denizhan, A Skoracka
Recent research on the wheat curl mite species complex has revealed extensive genetic diversity that has distinguished several genetic lineages infesting bread wheat (Triticum aestivum L.) and other cereals worldwide. Turkey is the historical region of wheat and barley (Hordeum vulgare L.) domestication and diversification. The close relationship between these grasses and the wheat curl mite provoked the question of the genetic diversity of the wheat curl mite in this region. The scope of the study was to investigate genetic differentiation within the wheat curl mite species complex on grasses in Turkey...
August 2015: Journal of Economic Entomology
Shaukat Ali, M A C Langham
Alternative hosts increase the difficulty of disease management in crops because these alternate hosts provide additional sources of primary inoculum or refuges for diversity in the pathogen gene pool. Agropyron cristatum (crested wheatgrass), Bromus inermis (smooth bromegrass), Pascopyrum smithii (western wheatgrass), Stipa viridula (green needlegrass), and Thinopyrum intermedium (intermediate wheatgrass), commonly identified in range, prairie, verge, and soil reclamation habitats, serve as additional hosts for Pyrenophora tritici-repentis, the cause of tan spot in wheat (Triticum aestivum L...
September 2015: Plant Pathology Journal
Yan Zhang, Jinpeng Zhang, Long Huang, Ainong Gao, Jing Zhang, Xinming Yang, Weihua Liu, Xiuquan Li, Lihui Li
This genetic map for Agropyron Gaertn. contained 1023 markers on seven linkage groups, with a total of 907.8 cM and an average distance of 1.5 cM between adjacent loci. Many wheat- Agropyron cristatum derivative lines exhibit superior agronomic traits, and part of them are valuable for future wheat breeding. To date, no high-density genetic map for Agropyron Gaertn. has been published. Specific-locus amplified fragment sequencing (SLAF-seq), a recently developed strategy for large scale de novo discovery and genotyping of single nucleotide polymorphisms (SNPs), was employed in this study to develop sufficient markers for a segregating Agropyron F1 population derived from an interspecific cross between two cross-pollinated diploid collections A...
December 2015: Planta
Zhen-Zhen Dong, Xing Fan, Li-Na Sha, Yi Wang, Jian Zeng, Hou-Yang Kang, Hai-Qin Zhang, Xiao-Li Wang, Li Zhang, Chun-Bang Ding, Rui-Wu Yang, Yong-Hong Zhou
BACKGROUND: Hybridization and polyploidization can be major mechanisms for plant evolution and speciation. Thus, the process of polyploidization and evolutionary history of polyploids is of widespread interest. The species in Elymus L. sensu lato are allopolyploids that share a common St genome from Pseudoroegneria in different combinations with H, Y, P, and W genomes. But how the St genome evolved in the Elymus s. l. during the hybridization and polyploidization events remains unclear...
2015: BMC Plant Biology
Jing Zhang, Jinpeng Zhang, Weihua Liu, Haiming Han, Yuqing Lu, Xinming Yang, Xiuquan Li, Lihui Li
This study explored the genetic constitutions of wheat-Agropyron cristatum 6P chromosomal translocation and determined the effects of 6P intercalary chromosome segment on thousand-grain weight and spike length in wheat. Crop wild relatives provide rich genetic resources for wheat improvement. Introduction of alien genes from Agropyron cristatum into common wheat can broaden its genetic diversity. In this study, radiation-induced wheat-A. cristatum translocation line Pubing3035 derived from the offspring of wheat-A...
September 2015: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
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