Genetic diversity assessment in Somali sorghum (Sorghum bicolor (L.) Moench) accessions using microsatellite markers

Manzelli, Marco; Pileri, Luca; Lacerenza, N. G.; Benedettelli, Stefano; Vecchio, V.

doi:10.1007/978-1-4020-6444-9_10

Cited by 10 publications

(12 citation statements)

References 35 publications

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“…''Markers'' ranked 17th in 1990-2009. Additionally, three marking technology terms were among the keywords that enjoyed the greatest rank advancements in the last two decades (Hadrys et al 1992;Mueller and Wolfenbarger 1999;Manzelli et al 2007): ' 'Microsatellites'' ranked 1239th in 1990'Microsatellites'' ranked 1239th in -1994, and its rank soared to 20th by 2009; ''AFLP'' ranked 8789th and was found in no papers in 1990-1994, while its rank grew to 32nd in 2005-2009; and ''RAPD'' was adopted earlier than the other two and ranked 94th in 1990-1994, whereas it ranked 27th in 2005-2009.…”

Section: Temporal Evolution Of Keyword Frequenciesmentioning

confidence: 99%

“…Although international organizations and countries have made significant efforts to conserve biodiversity, such as the ''Convention on Biological Diversity,'' the ''Census of Marine Life,'' and ''DIVERSITAS'' (Glowka et al 1994;Cropper 1993;Costello et al 2010), these efforts have not been sufficient, and biodiversity loss has continued (Tisdell 2003;Burns et al 2009). Biodiversity has been studied from various perspectives, including the spatiotemporal patterns of biodiversity (Gray 1997;Heino et al 2005), the underlying dynamics of biodiversity changes (Pielke et al 2002), the methods and technologies for biodiversity research (Hadrys et al 1992;Muyzer et al 1993;Mueller and Wolfenbarger 1999;Manzelli et al 2007) and the practical conservation of biodiversity (Margules and Pressey 2000;Myers et al 2000). In addition to these studies, a bibliometric analysis of global biodiversity research could serve as an alternative and innovative way of revealing global research trends in biodiversity.…”

Section: Introductionmentioning

confidence: 98%

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Global biodiversity research during 1900–2009: a bibliometric analysis

2011

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We performed a bibliometric analysis of published biodiversity research for the period of 1900-2009, based on the Science Citation Index (SCI) database. Our analysis reveals the authorial, institutional, spatiotemporal, and categorical patterns in biodiversity research and provides an alternative demonstration of research advancements, which may serve as a potential guide for future research. The growth of article outputs has exploded since the 1990s, along with an increasing collaboration index, references, and citations. Ecology, environmental sciences, biodiversity conservations, and plant science were most frequently used subject categories in biodiversity studies, and Biological Conservation, Journal of Soil and Water Conservation, Conservation Biology and Biodiversity and Conservation were most active journals in this field. The United States was the largest contributor in global biodiversity research, as the U.S. produced the most single-country and collaborative articles, had the greatest number of top research institutions, and had a central position in collaboration networks. We perceived an increasing number of both internationally collaborative and inter-institutionally collaborative articles, with the latter form of collaboration being more prevalent than the former. A keyword analysis found several interesting terminology preferences, confirmed conservation's central position as a topic in biodiversity research, revealed the adoption of advanced technologies, and demonstrated keen interest in both the patterns and underlying processes of ecosystems. Our study reveals patterns in scientific outputs and academic collaborations and serves as an alternative and innovative way of revealing global research trends in biodiversity.

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Section: Temporal Evolution Of Keyword Frequenciesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Global biodiversity research during 1900–2009: a bibliometric analysis

2011

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“…Among these, Single Sequence Repeat (SSR) or microsatellite markers, which target tandem repeats of ditri-or tetra-nucleotide DNA motifs, are both highly polymorphic within populations and randomly distributed throughout the genome in both transcribed and nontranscribed sequences (Saghai-Maroof et al, 1994;Manzelli et al, 2007). SSR markers have been successfully used to evaluate genetic diversity in several crop species such as wheat (Fufa et al, 2005), Pennisetum purpureum (Azevedo et al, 2012), Capsicum (Nicolai et al, 2013), Sorghum (Cuevas et al, 2014), barley (Shakhatreh et al, 2015), Vigna subterranea (Molosiwa et al, 2015), maize (Salami et al, 2016) and some underutilized species such as buckwheat and wild melon (Roy et al, 2012;Zhang and Zao, 2013).…”

Section: Introductionmentioning

confidence: 99%

Assessment of genetic diversity among cultivated Pearl millet (Pennisetum glaucum, Poaceae) accessions from Benin, West Africa

Adéoti¹,

Djèdatin²,

Ewedje³

et al. 2017

Afr. J. Biotechnol.

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Simple sequence repeat (SSR) molecular markers were used for genetic diversity analysis and population structure of the cultivated Pearl millet in Benin, West Africa. In order to assess the level of genetic diversity, 14 polymorphic SSR markers were used to screen 114 accessions from different agroecological zones in Benin. SSR markers were found to reveal a total of 57 alleles with an average of 4.071 allele per locus. Genetic diversity index varied from 0.099 to 0.633 with an average of 0.405. The average observed heterozygosity was found to reach 0.425. The analysis of molecular variance showed no real differentiation between regions. Only 5% of genetic variation was observed between samples collected from north-eastern and north-western region. A high level of variation (95%) was observed among accessions. Moreover, both principal component analysis (PCA) and the dendrogram obtained from the genetic distance among accessions revealed the absence of any specific structuration of accessions from each region under study. Our results confirmed diversity among cultivated Pearl millet in Benin and such diversity is not clustering according to geographical patterns.

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“…Previous studies have shown that intravarietal genetic diversity in Morocco and Somalia local sorghum varieties exceeded inter-varietal diversity (Djè et al, 1999;Manzelli et al, 2007), while Barnaud et al (2007) found that only 30% of variation accounted for intra-varietal diversity in Cameroon. These studies, however, did not compare the structure of genetic diversity to that of agro-morphological diversity when exposed to natural and / or farmers' selection.…”

Section: Introductionmentioning

confidence: 88%

Patterns of genetic structure and phenotypic diversity in sorghum landraces in relation to farmers’ management in Burkina Faso

Kondombo¹,

Deu²,

Chantereau³

et al. 2017

Int. J. Bio. Chem. Sci

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Sorghum [Sorghum bicolor (L.) Moench] is an important food crop in Burkina Faso. Farmers grow various sorghum landraces, distinguished by their morphological and phenological characteristics. This study aimed addressing how this varietal diversity is managed by farmers, and how their management shape the genetic structures of local sorghum. Diversity levels in ten local sorghum guinea varieties (25 panicles per variety) collected from different farms in three agro-ecological regions across Burkina Faso were assessed using nine agro-morphological traits and twelve SSR markers. The importance of phenotypic intra-varietal diversity in early, intermediate and late maturing varieties varied in relation to the observed trait. The genetic analysis specified that the highest diversity rates were in the late maturing varieties (3.3 for allelic richness and 0.47 for gene diversity). Factorial Discriminant Analysis on quantitative traits and cluster analysis based on SSR markers showed that early maturing varieties were discriminated from late and intermediate ones, confirming farmers' classification of maturity groups (MG). Multivariate Q ST and F ST values revealed two subgroups of quantitative traits that underwent either stabilizing or divergent selection among MG scale. These results underline the role of farmer practices in phenotypic and genetic evolution of sorghum. This concept should be well considered in sorghum breeding programs.

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Genetic diversity assessment in Somali sorghum (Sorghum bicolor (L.) Moench) accessions using microsatellite markers

Cited by 10 publications

References 35 publications

Global biodiversity research during 1900–2009: a bibliometric analysis

Global biodiversity research during 1900–2009: a bibliometric analysis

Assessment of genetic diversity among cultivated Pearl millet (Pennisetum glaucum, Poaceae) accessions from Benin, West Africa

Patterns of genetic structure and phenotypic diversity in sorghum landraces in relation to farmers’ management in Burkina Faso

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