Genetic variation in the vulnerable and endemic Monkey Puzzle tree, detected using RAPDs

Bekessy, Sarah A.; Allnutt, Theo R.; Premoli, Andrea C.; Lara, Antonio; Ennos, Richard A.; Burgman, Mark A.; Cortés, Marco; Newton, Adrian C.

doi:10.1038/sj.hdy.6800033

Cited by 114 publications

(111 citation statements)

References 33 publications

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“…Such correlations are often observed in tree populations over long distances (Bekessy et al, 2002), even though no significant correlation is detected over short distances (Schierenbeck et al, 1997).…”

Section: Discussionmentioning

confidence: 98%

“…Genetic diversity of V. paradoxa Although comparisons are not always straightforward with RAPDs, the genetic diversity parameters exhibit values comparable to other species distributed across a wide continuous range (Bekessy et al, 2002;Newton et al, 2002). There are few published studies concerning the diversity of chloroplast microsatellite markers in angiosperm tree species.…”

Section: Discussionmentioning

confidence: 99%

“…Although the theory has been debated, one of the most consistent factors, suggested to have had a strong influence on the partition of the genetic diversity of tree species, is the last glaciation and the subsequent migration from various refugia (Willis and Whittaker, 2000). In Europe (Vendramin et al, 1998) or in South America (Bekessy et al, 2002), the genetic variability of tree species has been analysed in connection with the last glaciation, 15-20 000 years ago. In the soudano-sahelian region of Africa, this period has also been suggested as having a strong impact on vegetation.…”

Section: Introductionmentioning

confidence: 99%

“…Among the various maker systems, RAPDs are one of the most popular DNA-based approaches (Martin and Hernandez Bermejo, 2000;Bekessy et al, 2002). They are the least technically demanding and offer a fast method for providing information from a large number of loci, particularly in species where no study has previously been undertaken.…”

Section: Introductionmentioning

confidence: 99%

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Genetic diversity of the shea tree (Vitellaria paradoxa C.F. Gaertn), detected by RAPD and chloroplast microsatellite markers

Fontaine

Lovett²,

Sanou

et al. 2004

Heredity

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RAPDs and chloroplast microsatellites were used to quantify the genetic variation of Vitellaria paradoxa (an economically important tree species in sub-Saharan Africa, north of the equator) and to analyse the geographic distribution of diversity in relation to the refuge theory. A total of 13 locations were sampled in eight countries, covering most of the natural range from Senegal to Uganda. A total of 67 polymorphic and 15 monomorphic RAPD loci were detected in 179 individuals. No relationship was identified between diversity and longitude or latitude. An unrooted neighbourjoining tree suggested a western group and an eastern group, representing 7% (P ¼ 0.000) of the total variation. A Mantel test suggested that genetic distances between populations were correlated to geographic distances (R ¼ 0.88, P ¼ 0.001). The three-chloroplast microsatellite primers, assayed in 116 individuals, revealed 10 different alleles and seven chlorotypes. Most of the populations comprised a single haplotype. It is proposed from these results that the difference between western and eastern populations results from putative refugia separated by the current 'Dahomey Gap' (a semiarid zone that meets the coast around the Ghana-Togo-Benin-Nigeria borders), an area that may have been exceptionally dry during glacial periods. In addition, it is suggested that the haplotype distribution and frequency in the western populations could be due to the more recent impact of humans, particularly shea tree selection and dispersal during traditional agroforestry.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Genetic diversity of the shea tree (Vitellaria paradoxa C.F. Gaertn), detected by RAPD and chloroplast microsatellite markers

Fontaine

Lovett²,

Sanou

et al. 2004

Heredity

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“…Our RAPD results for the genetic diversity of P. ramosissimus correspond with the DNA based AFLP marker, although many plant species of Rhamnaceae exhibited different diversity according to the used marker systems. Bekessy et al, 2002). Also, Ge et al (2003) suggested that genetic differentiation among populations using Φst, modified F-statics, and Gst usually exhibit below 19% when RAPD markers have been analyzed for outcrossing plant species.…”

Section: Genetic Diversitymentioning

confidence: 99%

Genetic Variation of Paliurus Ramosissimus (Lour.) Poiret (Rhamnaceae): Implication for Conservation Strategies

Lee¹

2017

Appl Ecol Env Res

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Abstract. Paliurus ramosissimus (Rhamnaceae) is a deciduous shrub found on the seashore of Jeju Island, located at the southern tip of the Korean peninsula, and has been designated a rare plant species by the Korea Forest Service. Random amplified polymorphic DNA was used to investigate the genetic variation within and among P. ramosissimus populations on Jeju Island. Populations of P. ramosissimus showed a relatively low genetic diversity. The percentage of polymorphic bands (PPB) ranged from 33.3% to 63.6% (average = 51.4%), Shannon's information index (I) ranged from 0.213 to 0.352 (average = 0.316), and Nei's gene diversity (H) ranged from 0.149 to 0.239 (average = 0.218). Analysis of molecular variance and Nei's gene differentiation coefficient showed low genetic differentiation among populations (Φst = 0.207 and Gst = 0.186). The level of gene flow was sufficient to counter population divergence due to genetic drift (Nm = 0.109). Population genetic information obtained from this study could provide a valuable baseline for conservation and management plans for this species; P. ramosissimus on Jeju Island have to be protected through in situ conservation. The populations Pyo-sun and Il-gwua with high genetic diversity have conservation priority. In particular, Pyo-sun population protection must be the highest priority, as this population was revealed to have a high genetic diversity despite its small size.

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Population genetic structure, genetic diversity, and natural history of the South American species of Nothofagus subgenus Lophozonia (Nothofagaceae) inferred from nuclear microsatellite data

Vergara

Gitzendanner

Soltis

et al. 2014

Ecology and Evolution

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The effect of glaciation on the levels and patterns of genetic variation has been well studied in the Northern Hemisphere. However, although glaciation has undoubtedly shaped the genetic structure of plants in the Southern Hemisphere, fewer studies have characterized the effect, and almost none of them using microsatellites. Particularly, complex patterns of genetic structure might be expected in areas such as the Andes, where both latitudinal and altitudinal glacial advance and retreat have molded modern plant communities. We therefore studied the population genetics of three closely related, hybridizing species of Nothofagus (N. obliqua, N. alpina, and N. glauca, all of subgenus Lophozonia; Nothofagaceae) from Chile. To estimate population genetic parameters and infer the influence of the last ice age on the spatial and genetic distribution of these species, we examined and analyzed genetic variability at seven polymorphic microsatellite DNA loci in 640 individuals from 40 populations covering most of the ranges of these species in Chile. Populations showed no significant inbreeding and exhibited relatively high levels of genetic diversity (HE = 0.502–0.662) and slight, but significant, genetic structure (RST = 8.7–16.0%). However, in N. obliqua, the small amount of genetic structure was spatially organized into three well-defined latitudinal groups. Our data may also suggest some introgression of N. alpina genes into N. obliqua in the northern populations. These results allowed us to reconstruct the influence of the last ice age on the genetic structure of these species, suggesting several centers of genetic diversity for N. obliqua and N. alpina, in agreement with the multiple refugia hypothesis.

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Genetic variation in the vulnerable and endemic Monkey Puzzle tree, detected using RAPDs

Cited by 114 publications

References 33 publications

Genetic diversity of the shea tree (Vitellaria paradoxa C.F. Gaertn), detected by RAPD and chloroplast microsatellite markers

Genetic diversity of the shea tree (Vitellaria paradoxa C.F. Gaertn), detected by RAPD and chloroplast microsatellite markers

Genetic Variation of Paliurus Ramosissimus (Lour.) Poiret (Rhamnaceae): Implication for Conservation Strategies

Population genetic structure, genetic diversity, and natural history of the South American species of Nothofagus subgenus Lophozonia (Nothofagaceae) inferred from nuclear microsatellite data

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