Diversidad vegetal de la Comunidad Valenciana : flora vascular de interés

Villalba, Manuel Benito Crespo

doi:10.14198/cdbio.2000.03.02

Cited by 4 publications

(3 citation statements)

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“…Based on morphological and karyological grounds it seems unlikely that L. narbonense could have arisen from hybridization between any of the extant Limonium species present in the area (Erben 1993;Crespo-Villalba and Lledó-Barrena 1998). Besides, L. narbonense and the morphologically (Erben 1993) and phylogenetically Lledó et al 2005) closest species, L. vulgare, do not share distribution areas, making hybridization between them highly unlikely in this area.…”

Section: Discussionmentioning

confidence: 98%

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Polyploid origin, genetic diversity and population structure in the tetraploid sea lavender Limonium narbonense Miller (Plumbaginaceae) from eastern Spain

2011

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Limonium narbonense Miller is a fertile tetraploid species with a sporophytic self-incompatibility system. This sea lavender is found in coastal salt marshes which have been under intense human pressure during the past decades resulting in significant habitat fragmentation. Eleven microsatellite loci specifically designed for this species were amplified in 135 individuals from five populations. These markers were used to investigate the polyploid nature, the levels of genetic diversity and population structure in this species. L. narbonense showed high levels of genetic diversity (A = 7.82, P = 100% H (T) = 0.446), consistent with its likely autotetraploid origin revealed in this study and obligate outcrossing breeding system. Inbreeding (F (IS)) values were low in the three southern populations (mean F (IS) = 0.062), and higher in the northern populations (mean F (IS) = 0.184). Bayesian analysis of population structure revealed that populations could be grouped into two genetic clusters, one including three southern populations and the other the two northernmost ones. Individuals from the two northernmost populations showed higher admixture of the two genetic clusters than individuals from the three southern ones. A thorough analysis of microsatellite electrophoretic patterns suggests an autotetraploid origin for L. narbonense. The genetic structure revealed in this study is attributed to a recent migration from the southern area. This result suggests a net gene flow from the south to the north, likely facilitated by migratory movements of birds visiting the temporary flooded ponds occupied by L. narbonense.

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Section: Discussionmentioning

confidence: 98%

“…It is a tetraploid species with 2n = 4x 1 = 36 chromosomes (Erben 1978(Erben , 1993Brullo and Pavone 1981;Crespo-Villalba and Lledó-Barrena 1998). It is an obligate outcrosser due to the sporophytic self-incompatibility system described above (Erben 1979).…”

Section: Introductionmentioning

confidence: 99%

Polyploid origin, genetic diversity and population structure in the tetraploid sea lavender Limonium narbonense Miller (Plumbaginaceae) from eastern Spain

2011

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“…On the coasts of the Valencian Community (Fig. 1), where L. dufourii lives, there are no karyologically compatible pairs of extant species that could hybridize to produce L. dufourii or they are so morphologically differentiated that they cannot be presumed to produce a species with the morphological traits of L. dufourii (Crespo-Villalba & Lledó-Barrena 1998). Additionally, crosses between L. dufourii individuals are prevented by both self-incompatibility and high male sterility, precluding the study of nonapomictic progeny in this species.…”

Section: Factors Affecting Genetic Variation In L Dufouriimentioning

confidence: 99%

Historical and biological determinants of genetic diversity in the highly endemic triploid sea lavender Limonium dufourii (Plumbaginaceae)

2007

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Microsatellite markers were used to evaluate the genetic diversity and population genetic structure in the critically endangered Limonium dufourii (Plumbaginaceae), a highly endemic triploid species from the coasts of eastern Spain. Sixty-five alleles from 13 microsatellite regions were amplified in a sample of 122 individuals collected from the six extant populations. Microsatellite patterns were consistent with the triploid nature of L. dufourii. Alleles were unambiguously assigned to two different parental subgenomes in this hybrid species and the greater contribution of the diploid parental subgenome was confirmed. Eleven, 25 and 26 multilocus genotypes were recorded from the haploid, diploid and from the combined information of both subgenomes, respectively. Genetic diversity was mostly distributed among populations (72.06% of the total genetic variation). Genotypes from Marjal del Moro populations grouped into two highly structured clusters (88.41% of the total variance). The observed patterns of distribution of genetic diversity are interpreted to result from multiple hybridization events and isolation between populations. Threats to this species are mainly anthropogenic (urbanization and tourism pressure), although stochastic risks cannot be ignored. Therefore, in order to preserve extant genetic variation of L. dufourii, in situ strategies such as the preservation of its habitat are a high priority. Several recommendations in order to assist ex situ measures to guarantee the success of conservation strategies and maintain the relationships between individuals and populations are proposed.

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Wood use in a medieval village: the contribution of wood charcoal analysis to the history of land use during the 13th and 14th centuries a.d. at Pobla d’Ifach, Calp, Alicante, Spain

Ntinou

Badal

Carrión

et al. 2012

Veget Hist Archaeobot

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Diversidad vegetal de la Comunidad Valenciana : flora vascular de interés

Cited by 4 publications

References 0 publications

Polyploid origin, genetic diversity and population structure in the tetraploid sea lavender Limonium narbonense Miller (Plumbaginaceae) from eastern Spain

Polyploid origin, genetic diversity and population structure in the tetraploid sea lavender Limonium narbonense Miller (Plumbaginaceae) from eastern Spain

Historical and biological determinants of genetic diversity in the highly endemic triploid sea lavender Limonium dufourii (Plumbaginaceae)

Wood use in a medieval village: the contribution of wood charcoal analysis to the history of land use during the 13th and 14th centuries a.d. at Pobla d’Ifach, Calp, Alicante, Spain

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