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Full-Text Articles in Physical Sciences and Mathematics
Selecting Grassland Species For Saline Environments, Mary-Jane E. Rogers, A. D. Craig, T. D. Colmer, R. Munns, S. J. Hughes, P. M. Evans, P. G. H. Nichols, R. Snowball, D. Henry, J. Deretic, B. Dear, M. Ewing
Selecting Grassland Species For Saline Environments, Mary-Jane E. Rogers, A. D. Craig, T. D. Colmer, R. Munns, S. J. Hughes, P. M. Evans, P. G. H. Nichols, R. Snowball, D. Henry, J. Deretic, B. Dear, M. Ewing
IGC Proceedings (1997-2023)
In Australia, around 5.7 million hectares of agricultural land are currently affected by dryland salinity or at risk from shallow water tables and this figure is expected to increase over the next 50 years (LWRA, 2001). Most improved grassland species cannot tolerate the combined effects of salt and waterlogging and, therefore, the productivity of sown grasslands in salt-affected areas is low. However, there is potential to overcome the lack of suitably adapted fodder species by introducing new, salt and waterlogging-tolerant species and by diversifying the gene pool of proven species. Potential species include exotic, naturalised and native Australian grass, legumes, …
Analysis Of Genetic Diversity In White Clover (Trifolium Repens) Breeding Populations Using Agro-Morphological And Rapd Markers, T. R. Sharma, S. Singh, R. Rathour, S. K. Sharma
Analysis Of Genetic Diversity In White Clover (Trifolium Repens) Breeding Populations Using Agro-Morphological And Rapd Markers, T. R. Sharma, S. Singh, R. Rathour, S. K. Sharma
IGC Proceedings (1997-2023)
White clover is an important forage legume for temperate regions, but very little is known about the genetic organisation of its breeding populations. The low amount of variability in the Indian collections of white clover for genetic improvement warrants the introduction of new germplasm and collecting local ecotypes for characterisation, utilisation and conservation. Several molecular techniques have been used for germplasm characterisation, variety identification, marker development and identification, molecular diagnostics, phylogenetic studies and diversity analysis. Because of its simplicity, rapidity and reliability, the RAPD technique has been used extensively for diversity analysis. The present study aims at characterising white clover …
Genetic Diversity In Festuca Species As Shown By Aflp, X. Q. Zhang, S. S. Bughrara
Genetic Diversity In Festuca Species As Shown By Aflp, X. Q. Zhang, S. S. Bughrara
IGC Proceedings (1997-2023)
Fescues (Festuca spp.) are widely occurring temperate grasses with more than 450 species that represent a vast resource for genetic improvement of turfgrass and forage cultivars. Fescues are normally outcrossing species and exhibit many ploidy levels(x=7). Much of the work in classification of Festuca is predominantly based on morphological and cytological features. Difficulties in morphological characterization, which are largely subjected to environmental influences, have resulted in many synonymous species and uncertainties in phylogenetic relationships. DNA fingerprinting is considered a more stable and reliable technique to explore genetic diversity and relationships.
Genetic Structure Of Mongolian Wheatgrass (Agroypron Mongolicum Keng) In Inner Mongolia Of China, Y. Jinfeng, Z. Mengli, X. Xinmin
Genetic Structure Of Mongolian Wheatgrass (Agroypron Mongolicum Keng) In Inner Mongolia Of China, Y. Jinfeng, Z. Mengli, X. Xinmin
IGC Proceedings (1997-2023)
Mongolia wheatgrass (Agroypron mongolicum) is a cross-pollinated, long-lived, cool-season and drought-resistant perennial bunchgrass, which plays an important role in arid and semi-arid grasslands of Inner Mongolia. Collections of A. mongolicum from different areas of Inner Mongolia are valuable sources of useful genes for its breeding. The genetic diversity of 8 accessions of A. mongolicum were examined in this study. A dendrogram was constructed to obtain information on the relationship between cultivated and wild A. mongolicum genotypes, which is basic information to explore the possibility of its use in intra- and inter-specific breeding programs.
Evaluation Of Genetic Diversity In White Clover (Trifolium Repens L.) Through Measurement Of Simple Sequence Repeat (Ssr) Polymorphism, J. George, E. Van Zijll De Jong, T. C. Wilkinson, M. P. Dobrowolski, N. O. I. Cogan, K. F. Smith, J. W. Forster
Evaluation Of Genetic Diversity In White Clover (Trifolium Repens L.) Through Measurement Of Simple Sequence Repeat (Ssr) Polymorphism, J. George, E. Van Zijll De Jong, T. C. Wilkinson, M. P. Dobrowolski, N. O. I. Cogan, K. F. Smith, J. W. Forster
IGC Proceedings (1997-2023)
White clover (Trifolium repens L.) is a key important temperate pasture legume. Due to the obligate outbreeding nature of white clover, individual genotypes within cultivars are highly genetically heterogeneous. Genetic diversity has been assessed within and between 16 elite cultivars derived from Europe, North and South America, New Zealand and Australia.
Genetic Diversity In Zoysiagrass Ecotypes Based On Morphological Characteristics And Ssr Markers, M. Hashiguchi, S. Tsuruta, T. Matsuo, M. Ebina, M. Kobayashi, H. Akamine, Ryo Akashi
Genetic Diversity In Zoysiagrass Ecotypes Based On Morphological Characteristics And Ssr Markers, M. Hashiguchi, S. Tsuruta, T. Matsuo, M. Ebina, M. Kobayashi, H. Akamine, Ryo Akashi
IGC Proceedings (1997-2023)
Zoysiagrass consists of a number of interfertile species, some of which are important grasses for turfgrass and grazing pasture in Japan. Recently, we developed simple sequence repeats (SSRs) markers from Zoysia japonica “Asagake” genomic DNA by enriched genomic library method (Yamamoto et al., 2002). Here we identify genetic diversity in 38 ecotypes of zoysiagrass (Z. matrella and Z. tenuifolia) from a group of southwest islands of Japan based on morphological characteristics and SSR markers.
Application Of Molecular Diversity In A Forage Grass Breeding Program, Andrew A. Hopkins, M. C. Saha
Application Of Molecular Diversity In A Forage Grass Breeding Program, Andrew A. Hopkins, M. C. Saha
IGC Proceedings (1997-2023)
Little or no genotypic information is available for many forage grass populations. The degree of genetic similarity within and among populations greatly influences the choice of breeding strategies and germplasm for developing improved cultivars. Molecular markers have proven effective in classifying genetic diversity of a number of perennial grasses (e.g. Fu et al., 2004; Kubik et al., 2001). We present here an overview of our efforts to integrate molecular diversity data into our breeding program.
Geographic Patterns In The Genetic Diversity Of Elymus Species From Qinghai-Tibetan And Inner Mongolian Plateau, Xuebing Yan, Yuxia Guo, Z. He, W. Kun
Geographic Patterns In The Genetic Diversity Of Elymus Species From Qinghai-Tibetan And Inner Mongolian Plateau, Xuebing Yan, Yuxia Guo, Z. He, W. Kun
IGC Proceedings (1997-2023)
The genus Elymus is the largest genus in the tribe Triticeae with about 150 species distributed in most temperate regions of the world (Dewey, 1984). The genetic diversity of Elymus spp. from alpine regions is very important for improving resistance to adverse condition. The goals of this study were to investigate micro- satellite and enzyme polymorphism and population structure of different regions and Elymus spp. in China.
Genetic Structure Of Mongolian Wheatgrass (Agroypron Mongolicum Keng) In Inner Mongolia Of China, Y. Jinfeng, Mengli Zhao, X. Xinmin
Genetic Structure Of Mongolian Wheatgrass (Agroypron Mongolicum Keng) In Inner Mongolia Of China, Y. Jinfeng, Mengli Zhao, X. Xinmin
IGC Proceedings (1997-2023)
Mongolia wheatgrass (Agroypron mongolicum) is a cross-pollinated, long-lived, cool-season and drought-resistant perennial bunchgrass, which plays an important role in arid and semi-arid grasslands of Inner Mongolia. Collections of A. mongolicum from different areas of Inner Mongolia are valuable sources of useful genes for its breeding. The genetic diversity of 8 accessions of A. mongolicum were examined in this study. A dendrogram was constructed to obtain information on the relationship between cultivated and wild A. mongolicum genotypes, which is basic information to explore the possibility of its use in intra- and inter-specific breeding programs.
Genetic Variation In The Perennial Ryegrass Fungal Endophyte Neotyphodium Lolii, E. Van Zijll De Jong, N. R. Bannan, A. V. Stewart, K. F. M. Reed, M. P. Dobrowolski, K. F. Smith, G. C. Spangenberg, J. W. Forster
Genetic Variation In The Perennial Ryegrass Fungal Endophyte Neotyphodium Lolii, E. Van Zijll De Jong, N. R. Bannan, A. V. Stewart, K. F. M. Reed, M. P. Dobrowolski, K. F. Smith, G. C. Spangenberg, J. W. Forster
IGC Proceedings (1997-2023)
The common fungal endophytes (Neotyphodium species) of temperate pasture grasses are associated with improved tolerance to water and nutrient stress and resistance to insect pests, but are also the causal agents of animal toxicoses. Considerable variation exists among grass-endophyte associations for these beneficial and detrimental agronomic traits. The extent to which this variation may be attributed to the endophyte genotype, the host genotype or environmental interactions is currently unknown. The development of molecular genetic markers for endophytes based on simple sequence repeat (SSR) loci and the demonstration of the specific detection of endophytes in planta with these markers (van …
Tall Fescue Expressed Sequence Tag And Simple Sequence Repeats: Important Resources For Grass Species, Malay C. Saha, J. C. Zwonitzer, K. Chekhovskiy, M. A. R. Mian
Tall Fescue Expressed Sequence Tag And Simple Sequence Repeats: Important Resources For Grass Species, Malay C. Saha, J. C. Zwonitzer, K. Chekhovskiy, M. A. R. Mian
IGC Proceedings (1997-2023)
Expressed sequence tag (EST) databases have been growing exponentially. The simple sequence repeat (SSR) has become one of the most useful molecular marker systems in plant breeding and is widely used in cultivar fingerprinting, genetic diversity assessment, molecular mapping and marker-assisted selection. ESTs are a potential source for SSRs. The EST-SSR markers are of high quality and have versatile applications in molecular breeding (Bughrara et al., 2003; Saha et al., 2004 a, b, c). Here, we present an overview of our efforts to develop SSRs from tall fescue ESTs and their application for the genetic improvement of forage …
Genetic Analysis Of The Interaction Between The Host Perennial Ryegrass And The Crown Rust Pathogen (Puccinia Coronata F.Sp. Lolii), P. M. Dracatos, J. L. Dumsday, R. S. Olle, N. O. I. Cogan, M. P. Dobrowolski, K. F. Smith, J. W. Forster
Genetic Analysis Of The Interaction Between The Host Perennial Ryegrass And The Crown Rust Pathogen (Puccinia Coronata F.Sp. Lolii), P. M. Dracatos, J. L. Dumsday, R. S. Olle, N. O. I. Cogan, M. P. Dobrowolski, K. F. Smith, J. W. Forster
IGC Proceedings (1997-2023)
Crown rust (Puccinia coronata f.sp lolii) is the most important fungal pathogen of perennial ryegrass (L.perenne L.). The physiological effects associated with infection include reduction of water soluble carbohydrate (WSC) reserves, causing decreased dry matter yield, digestibility and palatability for herbivores reared for meat, milk and wool production. Phenotypic variability of rust-infection in perennial ryegrass is likely to be due to environmental effects, as well as the interaction of defence and resistance genes in the grass and virulence genes in the pathogen. Classical and molecular genetic marker-based studies have previously detected both qualitative and quantitative resistance, due respectively …
Selecting Grassland Species For Saline Environments, M. E. Rogers, A. D. Craig, T. D. Colmer, R. Munns, S. J. Hughes, P. M. Evans, P. G. H. Nichols, R. Snowball, D. Henry, J. Deretic, B. Dear, M. Ewing
Selecting Grassland Species For Saline Environments, M. E. Rogers, A. D. Craig, T. D. Colmer, R. Munns, S. J. Hughes, P. M. Evans, P. G. H. Nichols, R. Snowball, D. Henry, J. Deretic, B. Dear, M. Ewing
IGC Proceedings (1997-2023)
In Australia, around 5.7 million hectares of agricultural land are currently affected by dryland salinity or at risk from shallow water tables and this figure is expected to increase over the next 50 years (LWRA, 2001). Most improved grassland species cannot tolerate the combined effects of salt and waterlogging and, therefore, the productivity of sown grasslands in salt-affected areas is low. However, there is potential to overcome the lack of suitably adapted fodder species by introducing new, salt and waterlogging-tolerant species and by diversifying the gene pool of proven species. Potential species include exotic, naturalised and native Australian grass, legumes, …
Selecting Grassland Species For Saline Environments, M. E. Rogers, A. D. Craig, T. D. Colmer, R. Munns, S. J. Hughes, P. M. Evans, P. G. H. Nichols, R. Snowball, D. Henry, J. Deretic, B. Dear, M. Ewing
Selecting Grassland Species For Saline Environments, M. E. Rogers, A. D. Craig, T. D. Colmer, R. Munns, S. J. Hughes, P. M. Evans, P. G. H. Nichols, R. Snowball, D. Henry, J. Deretic, B. Dear, M. Ewing
IGC Proceedings (1997-2023)
In Australia, around 5.7 million hectares of agricultural land are currently affected by dryland salinity or at risk from shallow water tables and this figure is expected to increase over the next 50 years (LWRA, 2001). Most improved grassland species cannot tolerate the combined effects of salt and waterlogging and, therefore, the productivity of sown grasslands in salt-affected areas is low. However, there is potential to overcome the lack of suitably adapted fodder species by introducing new, salt and waterlogging-tolerant species and by diversifying the gene pool of proven species. Potential species include exotic, naturalised and native Australian grass, legumes, …
Genetic Diversity Among And Within Accessions Of A Lablab (Lablab Purpureus) Collection Maintained In The Ilri Forage Genebank, M. S. Muktar, A. M. Sartie, A. T. Negawo, E. Habte, C. S. Jones
Genetic Diversity Among And Within Accessions Of A Lablab (Lablab Purpureus) Collection Maintained In The Ilri Forage Genebank, M. S. Muktar, A. M. Sartie, A. T. Negawo, E. Habte, C. S. Jones
IGC Proceedings (1997-2023)
Lablab (Lablab purpureus L.) is an important annual multi-purpose legume used as a vegetable for human consumption, as forage for livestock, and as green manure and a cover crop to improve soil fertility. It has a high feed value with good digestibility and high crude protein content. The International Livestock Research Institute (ILRI) forage genebank holds a diverse set of 340 lablab accessions collected from different regions of the world. A total of 1,843 plants from 142 lablab accessions (1 to 29 plants per accession genotyped individually) were genotyped by the genotyping-by-sequencing (GBS) method of the DArTseq platform. The …
Genetic Diversity In The Anthracnose Pathogen Infecting Stylosanthes In Brazil, India And China, P. Weeds, S. Chakraborty, Celso D. Fernandes, M. J. Charchar, C. R. Ramesh, Guodao Liu, S. Kelemu
Genetic Diversity In The Anthracnose Pathogen Infecting Stylosanthes In Brazil, India And China, P. Weeds, S. Chakraborty, Celso D. Fernandes, M. J. Charchar, C. R. Ramesh, Guodao Liu, S. Kelemu
IGC Proceedings (1997-2023)
This work aimed to determine the genetic diversity of Colletotrichum gloeosporioides infecting Stylosanthes spp. in Brazil, China and India. A total of 132 isolate originating from S. seabrana, S. macrocephala, S. capitata, S. scabra, and S. guianensis were used. Four major genetic groups were identified from an analysis of genetic diversity using selection-neutral DNA markers. Group 1 contained 20 isolates and this may represent a genotype that migrated from the center of diversity in Brazil and Colombia to Australia, Thailand and India. Group 2 consisted of 66 Brazilian isolates and group 3 had 19 isolates from …
Genetic Diversity Evaluation Of Roegneria Kamoji Ohwi Germplasm From Different Ecoregions In China, Zhu Xu, H. J. Xiao, David L. Michalk
Genetic Diversity Evaluation Of Roegneria Kamoji Ohwi Germplasm From Different Ecoregions In China, Zhu Xu, H. J. Xiao, David L. Michalk
IGC Proceedings (1997-2023)
No abstract provided.
Population Genetic Diversity Of Potaninia Mongolica Maxim, Hong Jin, Yongming Zhang, Lan Yun
Population Genetic Diversity Of Potaninia Mongolica Maxim, Hong Jin, Yongming Zhang, Lan Yun
IGC Proceedings (1997-2023)
No abstract provided.
Molecular Authentication Of The Eospalax Of Myospalax By Analyzing Cytochrome B Sequences, Hongshan Yang, Genzhu Chang, Xiaoqin He
Molecular Authentication Of The Eospalax Of Myospalax By Analyzing Cytochrome B Sequences, Hongshan Yang, Genzhu Chang, Xiaoqin He
IGC Proceedings (1997-2023)
No abstract provided.
Isolation And Characterization Of Polymorphic Microsatellite Loci In Achnatherum Inebrians And A. Sibiricum, Na Chen, Chunjie Li
Isolation And Characterization Of Polymorphic Microsatellite Loci In Achnatherum Inebrians And A. Sibiricum, Na Chen, Chunjie Li
IGC Proceedings (1997-2023)
No abstract provided.
A Genetic Diversity Analysis Of Wild Caragana Korshinskii Based On Allozyme And Aflp, Zan Wang, Xuemin Wang, Hongwen Gao
A Genetic Diversity Analysis Of Wild Caragana Korshinskii Based On Allozyme And Aflp, Zan Wang, Xuemin Wang, Hongwen Gao
IGC Proceedings (1997-2023)
No abstract provided.
Genetic Diversity Of Orchardgrass Germplasm Detected By Molecular Markers, Xinquan Zhang, Bing Zeng, Yan Peng, Ying Lan
Genetic Diversity Of Orchardgrass Germplasm Detected By Molecular Markers, Xinquan Zhang, Bing Zeng, Yan Peng, Ying Lan
IGC Proceedings (1997-2023)
No abstract provided.
Study On Gliadin Diversity Trait Of Elymus Nutans L. In The Northwestern Plateau Of Sichuan Province, Jianbo Zhang, Shiqie Bai
Study On Gliadin Diversity Trait Of Elymus Nutans L. In The Northwestern Plateau Of Sichuan Province, Jianbo Zhang, Shiqie Bai
IGC Proceedings (1997-2023)
No abstract provided.
Genetic Diversity Among Alfalfa (Medicago Sativa L.) Cultivars Using Issr Markers, J. R. Yu, D. Q. Liu, L. M. Chen, K. Z. Li, Yongxiong Yu
Genetic Diversity Among Alfalfa (Medicago Sativa L.) Cultivars Using Issr Markers, J. R. Yu, D. Q. Liu, L. M. Chen, K. Z. Li, Yongxiong Yu
IGC Proceedings (1997-2023)
No abstract provided.
Analysis Of Genetic Diversity In Alfalfa With Molecular Markers, Zhenwu Wei, Xiaoli Geng, Zhanhua Yang, Linyou Lu, Yan Zhao
Analysis Of Genetic Diversity In Alfalfa With Molecular Markers, Zhenwu Wei, Xiaoli Geng, Zhanhua Yang, Linyou Lu, Yan Zhao
IGC Proceedings (1997-2023)
No abstract provided.
Study On Genetic Diversity Of Wild Lespedeza Germplasm Resources, W. H. Yan, Zhu Xu, T. Y. Xilin
Study On Genetic Diversity Of Wild Lespedeza Germplasm Resources, W. H. Yan, Zhu Xu, T. Y. Xilin
IGC Proceedings (1997-2023)
No abstract provided.
Investigation On Genetic Diversity In Subgenus Eospalax Of Myospalax Genus Using Cytochrome B Gene Sequences Of Gansu Province, Hongshan Yang, Xiaoqin He, Genzhu Chang
Investigation On Genetic Diversity In Subgenus Eospalax Of Myospalax Genus Using Cytochrome B Gene Sequences Of Gansu Province, Hongshan Yang, Xiaoqin He, Genzhu Chang
IGC Proceedings (1997-2023)
No abstract provided.
Genetic Diversity Of Medicago Ruthenica In Inner Mongolia On Using Ssr Markers, Hongyan Li, Zhiyong Li, Fugui Mi, Xinxiong Lu, Hongmei Ning, Wengui Shi, Xingyou Li
Genetic Diversity Of Medicago Ruthenica In Inner Mongolia On Using Ssr Markers, Hongyan Li, Zhiyong Li, Fugui Mi, Xinxiong Lu, Hongmei Ning, Wengui Shi, Xingyou Li
IGC Proceedings (1997-2023)
No abstract provided.
Genetic Diversity And Population Structure Of Hemarthria Compressa In Southwest China, Linkai Huang, Xinquan Zhang, Yangjie Yi, Xiao Ma, Fang Li
Genetic Diversity And Population Structure Of Hemarthria Compressa In Southwest China, Linkai Huang, Xinquan Zhang, Yangjie Yi, Xiao Ma, Fang Li
IGC Proceedings (1997-2023)
No abstract provided.
Genetic Diversity Of Elymus Sibiricus L. In The Eastern Qinghai‐Tibet Plateau Of China Detected By Srap Markers, Jiajun Yan, Shiqie Bai, Xiao Ma, Xinquan Zhang, Changbing Zhang, Minghong You
Genetic Diversity Of Elymus Sibiricus L. In The Eastern Qinghai‐Tibet Plateau Of China Detected By Srap Markers, Jiajun Yan, Shiqie Bai, Xiao Ma, Xinquan Zhang, Changbing Zhang, Minghong You
IGC Proceedings (1997-2023)
No abstract provided.