Analysis of genetic diversity of Guizotia abyssinica from Ethiopia using inter simple sequence repeat markers

Petros, Yohannes; Merker, Arnulf; Zeleke, Habtamu

doi:10.1111/j.2007.0018-0661.01969.x

Cited by 21 publications

(16 citation statements)

References 26 publications

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“…ISSRs provide extremely useful data for estimating genetic diversity (Ge et al 2005;Nan et al 2003;Petros et al 2007;Gomes et al 2009;Vargas-Ponce et al 2009), phylogenetic analyses (Matos et al 2001;Mort et al 2003;Wolfe and Randle 2001) for studying the inter-and intraspecific relations among plants (Archibald et al 2006;Petros et al 2008;Wolfe and Randle 2001). The objective of the present study was to determine whether ISSR markers provide sufficient resolution for interspecific discrimination of Mexican species of Physalis and to assess their utility for inferring interspecific relationships.…”

Section: Introductionmentioning

confidence: 99%

Assessing Genetic Diversity in Mexican Husk Tomato Species

et al. 2010

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Mexico is the center of diversity of the husk tomato (Physalis L., Solanaceae), which includes a number of commercially important edible and ornamental species. Taxonomic identification is presently based on morphological characteristics, but the presence of high inter-and intraspecific morphological variation makes this task difficult. Six ISSR primers were used on eight Mexican species of Physalis to determine their utility for interspecific taxonomic discrimination and to assess their potential for inferring interspecific relationships. The six ISSR primers amplified 101 bands, with 100% polymorphism across samples. The number of bands per primer varied from 10 to 21. All primers produced different fingerprint profiles for each species, confirming the ISSR value in taxonomic discrimination. Discrimination values based on Simpson's diversity index varied from 0.48 to 0.58. Genetic interspecific similarity values ranged from 0.20 to 0.57, and intraspecific similarity values were highest for Physalis angulata (0.71), followed by Physalis philadelphica (0.63) and Physalis lagascae (0.55). The UPGMA analysis grouped accessions of the same species together and clustered together Physalis species of similar morphological traits. Thus, ISSR markers are useful in estimating genetic relationships in Physalis.

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Section: Introductionmentioning

confidence: 99%

Assessing Genetic Diversity in Mexican Husk Tomato Species

et al. 2010

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“…Inter Simple Sequence Repeat analysis of G. abyssinica populations collected from eight niger growing regions of Ethiopia was done by Petros et al (2007). It was shown that the technique reveals high polymorphism within and among the niger populations of Ethiopia.…”

Section: Introductionmentioning

confidence: 99%

Analysis of genetic diversity and relationships of wild Guizotia species from Ethiopia using ISSR markers

Petros

Merker

Zeleke

2007

Genet Resour Crop Evol

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“…Studies on the genetic diversity of Ethiopian niger using various molecular marker techniques have revealed high genetic variation (e.g., Geleta et al 2007Geleta et al , 2008Petros et al 2007). Interesting genotypes with different desirable traits have recently been identified and are being developed in our department.…”

Section: Introductionmentioning

confidence: 98%

Population genetics of self-incompatibility and developing self-compatible genotypes in niger (Guizotia abyssinica)

Geleta

Bryngelsson

2010

Euphytica

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Niger (Guizotia abyssinica (L. f.) Cass.(Asteraceae) is a strictly self-incompatible crop species with a sporophytic self-incompatibility mechanism. This characteristic presents a number of difficulties in plant improvement programs. The objective of this study was to determine the number and distribution of S-alleles in Ethiopian niger populations and to identify and develop self-compatible genotypes with various associated advantages. Several aspects of self-incompatibility in niger were compared in selfand cross-pollination experiments in which seed-set was considered to be a measure of compatibility. Our results indicate the presence of a minimum of ten selfincompatibility alleles and one self-compatibility allele at the S-locus in niger. Most of these alleles behave differently in the pollen and pistil. About twothirds of the allelic interactions in both the pollen and pistil were dominant/recessive, and one-third were codominant. The reciprocal cross-pollinations (RCPs) resulted in progeny with similar levels of compatibility within and among populations because of a wide distribution of S-alleles in the populations and, consequently, low population differentiation at the S-locus.An analysis of molecular variance (AMOVA) revealed that only 2% of the total genetic variation at the S-locus differentiates the populations. In conclusion, selfcompatible genotypes from the Ethiopian niger gene pool have been identified and developed for the first time.

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Analysis of genetic diversity of Guizotia abyssinica from Ethiopia using inter simple sequence repeat markers

Cited by 21 publications

References 26 publications

Assessing Genetic Diversity in Mexican Husk Tomato Species

Assessing Genetic Diversity in Mexican Husk Tomato Species

Analysis of genetic diversity and relationships of wild Guizotia species from Ethiopia using ISSR markers

Population genetics of self-incompatibility and developing self-compatible genotypes in niger (Guizotia abyssinica)

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