Genetic Structure of a Worldwide Germplasm Collection of Prunus armeniaca L. Reveals Three Major Diffusion Routes for Varieties Coming From the Species’ Center of Origin

Bourguiba, Hedia; Sauvage, Christopher; Zhebentyayeva, Tetyana; Ledbetter, Craig A.; Krška, B.; Remay, Arnaud; D’Onofrio, Claudio; Iketani, Hiroyuki; Christen, Danilo; Krichen, Lamia; Trifi-Farah, Neïla; Liu, Weisheng; Roch, Guillaume; Audergon, Jean Marc

doi:10.3389/fpls.2020.00638

Cited by 35 publications

(40 citation statements)

References 66 publications

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“…Six groups were clustered together and difficult to differentiate, which may be due to the use of the same cultivars as the parents in different breeding programs, which could lead to a gene flow across the groups. Most genetic variation within groups rather than among groups has been also found in apricot accessions [41]. In almond, He values higher than Ho values, consistent with the results reported herein, have been attributed to the human selection and the exhausting breeding activity [37].…”

Section: Discussionsupporting

confidence: 89%

“…Currently, most SSR markers available derive from cherry [27][28][29][30] and peach [26,[31][32][33], although a small number have been developed in apricot [34] and Japanese plum [35]. They have been used to analyze the genetic diversity and to improve the management of plant genetic resources in almond [36][37][38][39], apricot [40,41], European plum [42,43], peach [44], and sweet cherry [45][46][47].…”

Section: Introductionmentioning

confidence: 99%

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Genetic Diversity and Population Structure of Japanese Plum-Type (Hybrids of P. salicina) Accessions Assessed by SSR Markers

Guerrero

Guerra²,

Herrera

et al. 2021

Agronomy

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Japanese plum (Prunus salicina Lindl.) is widely distributed in temperate zones across the world. Since its introduction to USA in the late 19th century, this species has been hybridized with up to 15 different diploid Prunus species. This high level of introgression has resulted in a wide range of traits and agronomic behaviors among currently grown cultivars. In this work, 161 Japanese plum-type accessions were genotyped using a set of eight Simple Sequence Repeats (SSR) markers to assess the current genetic diversity and population structure. A total of 104 alleles were detected, with an average of 13 alleles per locus. The overall Polymorphic Informative Content (PIC) value of SSR markers was 0.75, which indicates that these SSR markers are highly polymorphic. The Unweighted Pair Group Method with Arithmetic (UPGMA) dendrogram and the seven groups inferred by Discriminant Analysis of Principal Components (DAPC) revealed a strong correlation of the population structure to the parentage background of the accessions, supported by a moderate but highly significant genetic differentiation. The results reported herein provide useful information for breeders and for the preservation of germplasm resources.

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Section: Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Genetic Diversity and Population Structure of Japanese Plum-Type (Hybrids of P. salicina) Accessions Assessed by SSR Markers

Guerrero

Guerra²,

Herrera

et al. 2021

Agronomy

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“…However, if human disturbance continues in the future, it will probably result in population decline, habitat fragmentation, or even population isolation of this species, and P. emblica may experience the bottleneck effect once again. According to our long-term field investigations, significant deviations from Hardy-Weinberg equilibrium in the YMB, BCA, BCB, BCC, and MSD populations may be a consequence of human activities which negatively influenced the habitats of these five populations, resulting in heterozygote deficiency and high inbreeding coefficient in these populations (Bourguiba et al, 2020). It is worth noting that P. emblica is not distributed in Northern China, whereas almost continuous distribution areas are formed in Southern and Southwestern China (Pathak, 2003).…”

Section: Population Dynamicsmentioning

confidence: 95%

Genetic Diversity of Phyllanthus emblica From Two Different Climate Type Areas

Liu

Wan

et al. 2020

Front. Plant Sci.

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Phyllanthus emblica L. is a well-known medicinal and edible plant species. Various medicinal compounds in the fruit make it an important medicinal and promising economic material. The plant is widely distributed in Southwestern and Southern China. However, due to massive deforestation and land reclamation as well as deterioration of its natural habitat in recent years, the wild resources of this species have been sharply reduced, and it is rare to see large-scale wild P. emblica forests so far. In order to effectively protect and rationally utilize this species, we investigated the genetic diversity, genetic structure, and population dynamics of 260 individuals from 10 populations of P. emblica sampled from the dry climate area in Yunnan and wet climate area in Guangxi using 20 polymorphic EST-SSR markers. We found high genetic diversity at the species level (He = 0.796) and within populations (He = 0.792), but low genetic differentiation among populations (FST = 0.084). In addition, most genetic variation existed within populations (92.44%) compared with variation among the populations (7.56%). Meanwhile, the NJ tree, STRUCTURE, and hierarchical analysis suggested that the sampled individuals were clustered into two distinct genetic groups. In contrast, the genetic diversity of the dry climate group (He = 0.786, Na = 11.790, I = 1.962) was higher than that of the wet climate group (He = 0.673, Na = 9.060, I = 1.555), which might be attributed to the combined effects of altitude, precipitation, and geographic distance. Interestingly, only altitude and precipitation had significant pure effects on the genetic diversity, and the former was slightly stronger. In addition, DIYABC analysis suggested the effective population size of P. emblica might have contracted in the beginning of the Last Glacial Maximum. These genetic features provided vital information for the conservation and sustainable development of genetic resources of P. emblica, and they also provided new insights and guidelines for ecological restoration and economic development in dry-hot valleys of Yunnan and karst areas in Guangxi.

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“…One reinforcing filler in the case of rigid polyurethane foams may be ground apricot (Prunus armeniaca L.) stones. Apricots belong to the Rosaceae family and occur both in domestic form (cultivated worldwide) and in a wild endemic form (Tian Shan Mountains, Central Asia) [30][31][32]. Apricot seeds were found in Garni (Armenia) in an archaeological excavation at the Chalcolithic-era site, hence its scientific name-Prunus armeniaca L. Apricots are mainly grown in Turkey, Uzbekistan, France, Iran, and Algeria.…”

Section: Introductionmentioning

confidence: 99%

Casein/Apricot Filler in the Production of Flame-Retardant Polyurethane Composites

et al. 2021

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Polyurethane (PUR) composites reinforced with 1, 2, and 5 wt.% of apricot filler modified with casein were synthesized in the following study. The impact of 1, 2, and 5 wt.% of casein/apricot filler on the cellular structure and physico-mechanical performances of reinforced PUR composites were determined. It was found that the incorporation of 1 and 2 wt.% of casein/apricot filler resulted in the production of PUR composites with improved selected physical, thermal, and mechanical properties, while the addition of 5 wt.% of casein/apricot filler led to some deterioration of their physico-mechanical performance. The best results were obtained for PUR composites reinforced with 2 wt.% of casein/apricot filler. Those composites were characterized by a uniform structure and a high content of closed cells. Compared with the reference foam, the incorporation of 2 wt.% of casein/apricot filler resulted in improvement in compressive strength, flexural strength, impact strength, and dynamic mechanical properties—such as glass transition temperature and storage modulus. Most importantly, PUR composites showed better fire resistance and thermal stability due to the good thermal performance of casein. The main aim of this article is to determine the influence of the natural combination of the apricot filler and casein on the mechanical properties and flammability of the obtained composites.

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Genetic Structure of a Worldwide Germplasm Collection of Prunus armeniaca L. Reveals Three Major Diffusion Routes for Varieties Coming From the Species’ Center of Origin

Cited by 35 publications

References 66 publications

Genetic Diversity and Population Structure of Japanese Plum-Type (Hybrids of P. salicina) Accessions Assessed by SSR Markers

Genetic Diversity and Population Structure of Japanese Plum-Type (Hybrids of P. salicina) Accessions Assessed by SSR Markers

Genetic Diversity of Phyllanthus emblica From Two Different Climate Type Areas

Casein/Apricot Filler in the Production of Flame-Retardant Polyurethane Composites

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