Genetic diversity among proso millet (Panicum miliaceum) biotypes assessed by AFLP technique

Karam, D.; Westra, Philip; Nissen, Scott J.; Ward, Sarah; Figueiredo, J. E. F.

doi:10.1590/s0100-83582004000200001

Cited by 31 publications

(27 citation statements)

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“…A very limited number of DNA markers are reported in proso millet. A few RAPD and AFLP markers were reported in proso millet for genetic diversity analysis [10][11][12]. Among all PCR-based markers, microsatellites or simple sequence repeat (SSR) markers are the most informative and useful because they are co-dominant, multi-allelic, highly reproducible, abundant and are evenly distributed in the plant genome [13,14].…”

Section: Introductionmentioning

confidence: 99%

Development and Characterization of SSR Markers in Proso Millet Based on Switchgrass Genomics

Rajput¹,

Plyler-Harveson²,

Santra³

2014

AJPS

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Proso millet (Panicum miliaceum) has high water use efficiency (WUE), a short growing-season, and is highly adapted to a semi-arid climate. Genomic resources for proso millet are very limited. Large numbers of DNA markers and other genomic tools in proso millet can readily be developed by using genomic resources in related grasses. The objectives of the present report were to 1) test and characterize switchgrass SSR markers for use in proso millet, and 2) elucidate repeat-motifs in proso millet based on new SSR marker analysis. A total of 548 SSR markers were tested on 8 proso millet genotypes. Out of these, 339 amplified SSR markers in proso millet. This showed that 62% of the switchgrass SSR markers were transferable to proso millet. Of these 339 markers, 254 were highly polymorphic among the 8 proso genotypes. The resolving power of these 254 polymorphic SSR markers ranged from 0.25 -14.75 with an average of 2.71. The 254 polymorphic SSR markers amplified 984 alleles in the ranges of 50 bp to 1300 bp. The majority of the SSR markers (221 of 254) amplified dinucleotide repeats. Based on SSR marker analysis, AG/GA was the most abundant repeat-motifs in proso millet. Switchgrass genomic information seems to be the most useful for developing DNA markers in proso millet. Markers developed in this study will be helpful for linkage map construction, mapping agronomic traits and future molecular breeding efforts in proso millet.

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Section: Introductionmentioning

confidence: 99%

Development and Characterization of SSR Markers in Proso Millet Based on Switchgrass Genomics

Rajput¹,

Plyler-Harveson²,

Santra³

2014

AJPS

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“…The results revealed extensive polymorphism among the accessions. A cluster dendrogram produced by similarity coefficient analysis revealed geographical groupings consistent with those of the M'Ribu and Hilu (1994) study, but not with the results of Karam et al (2004) described below. Hu et al (2008) mentioned "hard" (which millet breeders call non-glutinous) and "soft" (glutinous) grain characteristics among the samples.…”

Section: Author(s)mentioning

confidence: 41%

“…This is not a distinction used widely in the literature, but is useful for interpreting how the various millet forms would be used and eaten [see section 3(b)]. Karam et al (2004) used the Amplified Fragment Length Polymorphism (AFLP) technique on three domestic and nine wild biotypes of proso millet. Subsequent cluster analysis resulted in two distinct groups without any geographical association.…”

Section: Author(s)mentioning

confidence: 99%

The Biology of Canadian Weeds: 155.Panicum miliaceumL.

Cavers

Kane

2016

Can. J. Plant Sci.

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this article has been changed to the CC BY 4.0 license. The PDF and HTML versions of the article have been modified accordingly.Abstract: Proso millet, Panicum miliaceum L. (Poaceae), has been a crop in Asia and Europe for 10 000 years and for over 300 years in Canada, where it is grown for grain, rescue crops, birdseed, forage, and recently for swath grazing. Crop-like biotypes have escaped from cultivation throughout Canada, but these infestations were generally temporary. Probably the first persistent, weedy biotype in Canada (Quebec) has large, dormant, dark red seeds. Its eradication has been attempted for many years. In the 1970s, a worse problem, a black-seeded biotype with many weedy attributes, including shattering as seeds ripen and strongly dormant seeds distasteful to many birds, spread across southern Ontario and became labelled as noxious. Concurrently, it was described as the worst weed in the US Corn Belt. In the 1980s, Canadian studies revealed infestations of other weedy biotypes, differing in seed colour and other attributes. Panicum miliaceum is an extremely variable species world-wide. Since the late 1990s, weedy proso millet has declined dramatically after the adoption of newer herbicides, particularly glyphosate. This development may lead to increases in cultivated proso millet, especially where climate change favours short-season crops grown under drier conditions. Key words: weed biology, proso millet, Panicum miliaceum L., weed/crop, intraspecific variation, global distribution and history.Résumé : On cultive le millet, Panicum miliaceum L. (poacées), depuis 10 000 ans en Asie et en Europe et depuis plus de trois siècles au Canada pour ses graines, comme provende de secours, pour nourrir les oiseaux, pour son fourrage et, plus récemment, pour la paissance en andain. Des biotypes domestiqués sont redevenus sauvages un peu partout au Canada, mais les infestations restent le plus souvent temporaires. Le premier biotype envahissant persistant du Canada a probablement été observé au Québec. Il se caractérise par de grosses semences rouges dormantes. On s'est efforcé de l'éradiquer pendant de nombreuses années. Dans les années 1970, un biotype à graines noires, possédant de nombreuses caractéristiques d'une mauvaise herbe (notamment l'égrenage prématuré quand les semences parviennent à maturité et des graines à dormance prolongée que peu d'oiseaux aiment), a soulevé un problème plus épineux en se répandant dans le sud de l'Ontario. Ce biotype a été qualifié de nuisible avant de devenir la pire adventice dans la ceinture du maïs des États-Unis. Dans les années 1980, des études canadiennes ont révélé l'existence de peuplements d'autres biotypes envahissants, aux semences de couleur différente et présentant d'autres caractères. Panicum miliaceum est une espèce extrêmement variable dans le monde. Depuis la fin des années 1990, les variétés envahissantes ont diminué de façon draconienne avec l'apparition de nouveaux herbicides, particulièrement le glyphosate. Ce développement pourrait déboucher su...

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“…O polimorfismo gerado por AFLP apresenta herança mendeliana e pode ser usado para estudar similaridade ou dissimilaridade genética dentro e entre populações, para desenvolver marcadores moleculares e para o mapeamento de genes de interesse (Karam et al, 2004). Entre os diferentes tipos de marcadores moleculares, o AFLP apresenta algumas vantagens para uso na caracterização de recursos genéticos, como a detecção de grande número de bandas informativas por reação, com ampla cobertura do genoma e considerável reprodutibilidade e principalmente por não necessitar de dados de sequenciamento prévio da espécie para a construção de primers (Spooner et al, 2005;Vuylsteke et al, 2007).…”

Section: Marcadores Molecularesunclassified

Biologia molecular aplicada à ciência das plantas daninhas

et al. 2018

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Resumo -As plantas daninhas possuem elevada variabilidade genética, e principalmente por este motivo, são adaptadas a ambientes com intensa atividade humana. Embora o controle de plantas daninhas tenha evoluído de maneira positiva nos últimos anos, elas continuam a interferir na produção agrícola. O objetivo desta revisão bibliográfica é apresentar a contribuição da biologia molecular nos estudos aplicados a herbologia. Há lacunas entre o que aprendemos sobre genômica de plantas daninhas e como esses conhecimentos poderiam nos auxiliar no manejo e melhorar a competividade de culturas agrícolas frente às plantas daninhas. Muitos estudos na área da ciência das plantas daninhas podem ser realizados com o emprego de técnicas de biologia molecular, sendo eles: caracterização do genoma de espécies de plantas daninhas, visando à identificação destes com maior acurácia, identificação de espécies resistentes a herbicidas e seu mecanismo de resistência, variabilidade e similaridade genética entre populações de plantas daninhas, identificação de genes envolvidos nos processos de interação entre plantas, dentre outros. Palavras-chave: herbicidas, variabilidade genética, genômica, DNA, biotecnologia Abstract -The weeds have high genetic variability, mainly for this, they are adapted to environments disturbed by humans. Although weed control has evolved positively in recent years, they continue to interfere with agricultural production. The objective of this bibliographic review is to present the contribution of molecular biology in the studies applied to herbology. There area gap in what we learn about weed genomics, which could help us manage and improve the competitiveness of weed crops. Many studies in the field of weed science can be carried out using molecular biology techniques. The characterization of the genome of weed species, aiming to identify species with higher accuracy, identification of herbicide resistant species and its mechanism of resistance, genetic variability and similarity among weed populations, identification of genes involved in the interaction processes between plants, among other.

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Genetic diversity among proso millet (Panicum miliaceum) biotypes assessed by AFLP technique

Cited by 31 publications

References 28 publications

Development and Characterization of SSR Markers in Proso Millet Based on Switchgrass Genomics

Development and Characterization of SSR Markers in Proso Millet Based on Switchgrass Genomics

The Biology of Canadian Weeds: 155.Panicum miliaceumL.

Biologia molecular aplicada à ciência das plantas daninhas

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