Analysis of the genetic similarities among seven species of Prosopis (Leguminosae:Mimosoideae)

Saidman, Beatriz Ofelia; Vilardi, Juan C.

doi:10.1007/bf00249150

Cited by 41 publications

(36 citation statements)

References 28 publications

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“…The clustering pattern of the Prosopis species selected in this work does not agree with the morphological criteria proposed by Burkart (1976), since species of the same series are not clustered together. There seems to be incongruence between the morphological and molecular data in the case of Prosopis species analysed here, and similar inconsistency was also observed in previous studies by many authors (Saidman and Vilardi 1987;Bessega et al 2005Bessega et al , 2006.…”

Section: Discussionsupporting

confidence: 73%

“…Enzyme and molecular marker studies have concluded that section Algarobia is not a natural group (Bessega et al 2005;Burghardt and Espert 2007). Although isozyme analysis proved to be useful, the enzymatic expression is restricted to specific developmental stages or tissues influenced by the environment (Solbrig and Bawa 1975;Whitmore and Bragg 1979;Saidman and Vilardi 1987). However, RAPD markers have shown clear advantages over isozymes in detecting genetic variability between species within the genus (Goswami and Ranade 1999;Bessega et al 2000;Ferreyra et al 2007).…”

Section: Introductionmentioning

confidence: 99%

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RAPD and microsatellite transferability studies in selected species of Prosopis (section Algarobia) with emphasis on Prosopis juliflora and P. pallida

Sherry

Smith

Patel

et al. 2011

J Genet

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Section: Discussionsupporting

confidence: 73%

Section: Introductionmentioning

confidence: 99%

RAPD and microsatellite transferability studies in selected species of Prosopis (section Algarobia) with emphasis on Prosopis juliflora and P. pallida

Sherry

Smith

Patel

et al. 2011

J Genet

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“…Isoenzymatic genotypic data were converted into allelic frequencies (Table II) following the genetic interpretation previously published (Saidman, 1985(Saidman, , 1990Saidman and Vilardi, 1987;Verga, 1995;Bessega, 1997).…”

Section: Discussionmentioning

confidence: 99%

“…Homology relationships among bands, genes, and alleles were determined by their correspondence to other species of Algarobia previously studied (Saidman, 1985(Saidman, , 1986(Saidman, , 1988(Saidman, , 1990(Saidman, , 1993Saidman and Vilardi, 1987;Bessega, 1997). The mean number of individuals (seedlings) studied per locus is shown in Table I (slight differences in number of individuals studied in different loci are due to missing data).…”

Section: Electrophoretic Techniquementioning

confidence: 99%

“…Among several efficient methods for revealing genetic variability within and among plant populations, some of the most widely applied are isozyme electrophoresis (Hamrick and Allard, 1972;Hamrick and Godt, 1990), random amplified DNA polymorphism -RAPDs - (Wolff and Peters-van Rijn, 1993;Wachira et al, 1995;Brummer et al, 1995;Swoboda and Bhalla, 1997;Palacios and Gonzalez-Candelas, 1997), and restriction fragment length polymorphisms -RFLPs - (Keim et al, 1989;Hong et al, 1993;Yanesita et al, 1997). In the genus Prosopis, previous isoenzymatic studies in some Algarobia Section species have shown low differentiation among species and populations coupled with high variability within populations (Saidman, 1985(Saidman, , 1986(Saidman, , 1990(Saidman, , 1993Saidman and Vilardi, 1987;Verga, 1995). Among the species of this section so far studied only P. caldenia (Saidman, 1990) and P. velutina (Bessega 1997) are recognizable by patterns of few loci.…”

Section: Introductionmentioning

confidence: 99%

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Isozyme and RAPD studies in Prosopis glandulosa and P. Velutina (Leguminosae, Mimosoideae)

2000

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Allozyme and random amplified polymorphic DNA (RAPD) techniques have been compared for their usefulness for genetic and taxonomic studies in Prosopis glandulosa and P. velutina populations. Isozymes and RAPDs yielded similarly high estimates of genetic variability. Genetic structure and differentiation were analyzed through non-hierarchical Wright's F DT . For all populations considered, both markers produced low gene flow (Nm < 1) estimates. When only P. glandulosa populations were analyzed, isozyme data yielded higher gene flow estimates (Nm > 1), in agreement with that expected for conspecific populations. However, in RAPD data the expected reduction in F DT and the increase in Nm were not observed. Correlation between F DT and geographical distance matrices (Mantel test) for all populations was significant (P = 0.02) when based on isozymes, but not so (P = 0.33) when based on RAPDs. No significant associations among genetic and geographical or climatic variables were observed. Two isoenzyme systems (GOT and PRX) enabled us to distinguish between P. glandulosa and P. velutina, but no diagnostic band for recognition of populations or species studied here were detected by RAPD. However, RAPD markers showed higher values for genetic differentiation among conspecific populations of P. glandulosa and a lower coefficient of variation than those obtained from isozymes.

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Genetic studies of various Prosopis species (Leguminosae, Section Algarobia) co‐occurring in oases of the Atacama Desert (northern Chile)

Bessega

Pometti

Fortunato

et al. 2021

Ecology and Evolution

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In the Atacama Desert from northern Chile (19–24°S), Prosopis (Leguminosae) individuals are restricted to oases that are unevenly distributed and isolated from each other by large stretches of barren landscape constituting an interesting study model as the degree of connectivity between natural populations depends on their dispersal capacity and the barriers imposed by the landscape. Our goal was to assess the genetic diversity and the degree of differentiation among groups of Prosopis individuals of different species from Section Algarobia and putative hybrids (hereafter populations) co‐occurring in these isolated oases from the Atacama Desert and determine whether genetic patterns are associated with dispersal barriers. Thirteen populations were sampled from oases located on three hydrographic basins (Pampa del Tamarugal, Rio Loa, and Salar de Atacama; northern, central, and southern basins, respectively). Individuals genotyped by eight SSRs show high levels of genetic diversity (HO = 0.61, Ar = 3.5) and low but significant genetic differentiation among populations (FST = 0.128, FST‐ENA = 0.129, DJOST = 0.238). The AMOVA indicates that most of the variation occurs within individuals (79%) and from the variance among individuals (21%); almost, the same variation can be found between basins and between populations within basins. Differentiation and structure results were not associated with the basins, retrieving up to four genetic clusters and certain admixture in the central populations. Pairwise differentiation comparisons among populations showed inconsistencies considering their distribution throughout the basins. Genetic and geographic distances were significantly correlated at global and within the basins considered (p < .02), but low correlation indices were obtained (r < .37). These results are discussed in relation to the fragmented landscape, considering both natural and non‐natural (humans) dispersal agents that may be moving Prosopis in the Atacama Desert.

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Analysis of the genetic similarities among seven species of Prosopis (Leguminosae:Mimosoideae)

Cited by 41 publications

References 28 publications

RAPD and microsatellite transferability studies in selected species of Prosopis (section Algarobia) with emphasis on Prosopis juliflora and P. pallida

RAPD and microsatellite transferability studies in selected species of Prosopis (section Algarobia) with emphasis on Prosopis juliflora and P. pallida

Isozyme and RAPD studies in Prosopis glandulosa and P. Velutina (Leguminosae, Mimosoideae)

Genetic studies of various Prosopis species (Leguminosae, Section Algarobia) co‐occurring in oases of the Atacama Desert (northern Chile)

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