Telomere fingerprinting for assessing chromosome number, isolate typing and recombination in the entomopathogen Beauveria bassiana

Padmavathi, J.; Devi, K. Uma; Rao, C. Uma Maheswara; Neelapu, Nageswara Rao Reddy

doi:10.1017/s0953756203007573

Cited by 28 publications

(17 citation statements)

References 26 publications

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“…In another previous study of 50 B. bassiana isolates of worldwide distribution, a very close similarity (∼80%) in AFLP fingerprints was reported [52]. However, the level of similarity between isolates varied with the technique used [53,54]. The lack of correlation between different DNA marker/fingerprinting techniques in the analysis of buffalo grass was attributed to the highly heterogeneous nature of the species and its diverse genetic background [55].…”

Section: Discussionmentioning

confidence: 91%

The molecular diversity of different isolates of Beauveria bassiana (Bals.) Vuill. as assessed using intermicrosatellites (ISSRs)

Estrada¹,

Camacho

Benito

2007

Cellular and Molecular Biology Letters

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Inter-microsatellite PCR (ISSR-PCR) markers were used to identify and to examine the genetic diversity of eleven Beauveria bassiana isolates with different geographic origins. The variability and the phylogenetic relationships between the eleven strains were analyzed using 172 ISSR-PCR markers. A high level of polymorphism (near 80%) was found using these molecular markers. Seven different isolates showed exclusive bands, and ISSR primer 873 was able to distinguish between all the strains. The dendrogram obtained with these markers is robust and in agreement with the geographical origins of the strains. All the isolates from the Caribbean region were grouped together in a cluster, while the other isolates grouped in the other cluster. The similarity exhibited between the two clusters was less than 50%. This value of homology shows the high genetic variability detected between the isolates from the Caribbean region and the other isolates. ISSR-PCR markers provide a quick, reliable and highly informative system for DNA fingerprinting, and allowed the identification of the different B. bassiana isolates studied.

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Section: Discussionmentioning

confidence: 91%

The molecular diversity of different isolates of Beauveria bassiana (Bals.) Vuill. as assessed using intermicrosatellites (ISSRs)

Estrada¹,

Camacho

Benito

2007

Cellular and Molecular Biology Letters

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“…This sequence has been described in Aspergillus nidulans (Bhattacharyya & Blackburn, 1997), Beauveria bassiana (Padmavathi et al, 2003), Botrytis cinerea (Levis et al, 1997), Cladosporium fulvum (Coleman et al, 1993), Fusarium oxysporum (Inglis et al, 2000), Glomus intraradices (Hijri et al, 2007), Magnaporthe grisea (Gao et al, 2002), Metarrhizium anisopliae (Inglis et al, 2005), N. crassa (Wu et al, 2009), Pestalotiopsis microspora (Long et al, 1998), Pleurotus ostreatus (Perez et al, 2009), Pneumocystis carinii (Keely et al, 2001), and Ustilago maydis (Sanchez-Alonso & Guzman, 2008). However, variations of this sequence can be found in other fungi such as A. oryzae that has dodecanucleotide telomere repeats (Kusumoto et al, 2003) Incomplete and imperfect telomere units have been reported in: A. oryzae, Candida albicans, Kluyveromyces lactis, S. cerevisiae and S. pombe.…”

Section: Fungal Telomeres -A Bioinformatics Approachmentioning

confidence: 76%

Basidiomycetes Telomeres – A Bioinformatics Approach

Ramı́rez¹,

Pérez²,

Castanera³

et al. 2011

Bioinformatics - Trends and Methodologies

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“…The gene diversity of fungal isolates can arise due to the diversification of a single genotype into several forms through accumulations of changes in the genome (Padmavathi et al, 2003). Taxon studies have described the morphological variation of A. placenta in color and size of stromata, color and the arrangement of conidial masses on the stromata, and size of conidia (Liu et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

High genetic variation among Aschersonia placenta (Clavicipitaceae) isolates from citrus orchards in China

Wang

Song²,

Zhang

2013

Genet. Mol. Res.

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ABSTRACT. Aschersonia placenta had been recognized as an important fungal pathogen of whiteflies. In recent years, natural occurrence of Aschersonia in whitefly populations was observed in many citrus orchards in the southern regions of China. We analyzed 60 A. placenta isolates obtained from Chinese citrus orchards, using inter-simple sequence repeats to examine the genetic diversity and to determine whether intraspecific variation is correlated with geographic origin. One hundred and fourteen fragments were generated from these isolates; 97% were polymorphic. The Nei's gene diversity (H) was estimated to be 0.1748 within the populations (range 0.0974-0.2179) and 0.3057 at the species level. Analysis of molecular variance showed that the genetic variation was found mainly within populations (74.9%). The coefficient of gene High genetic variation detected among A. placenta isolates differentiation (G ST = 0.4315) indicated that 56.85% of the genetic diversity resided within populations. The Mantel test revealed no significant correlation between the genetic distance and the corresponding geographical distance (r = 0.142 and P = 0.887); the unweighted pair-group method using arithmetic average clustering gave similar results.

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Telomere fingerprinting for assessing chromosome number, isolate typing and recombination in the entomopathogen Beauveria bassiana

Cited by 28 publications

References 26 publications

The molecular diversity of different isolates of Beauveria bassiana (Bals.) Vuill. as assessed using intermicrosatellites (ISSRs)

The molecular diversity of different isolates of Beauveria bassiana (Bals.) Vuill. as assessed using intermicrosatellites (ISSRs)

Basidiomycetes Telomeres – A Bioinformatics Approach

High genetic variation among Aschersonia placenta (Clavicipitaceae) isolates from citrus orchards in China

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