Diversity and Genetic Structure Inferred with Microsatellites in Natural Populations of Pseudotsuga menziesii (Mirb.) Franco (Pinaceae) in the Central Region of Mexico

Castelán, Paulina Montiel; Cortés-Cruz, Moisés; Mendoza-Castillo, Ma. del Carmen; Cruz-Izquierdo, Serafín; López-Upton, Javier; Sandoval-Padilla, Isaac; Cruz, Vidal Guerra de la

doi:10.3390/f10020101

Cited by 6 publications

(3 citation statements)

References 52 publications

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“…More significant genetic variation within the population (88.2%) was also observed in Prosopis cineraria compared to the variance between populations (11.8%) (Sharma et al 2011). Similar results were also observed in the Pseudotsuga menziesii population, with diversity values of 72,2% within and 27.8% between populations (Castelan et al 2019). In contrast, in Tecomella undulata the diversity within populations was 64% and 36% among populations (Chhajer et al 2018).…”

Section: Genetic Distance Among Rosewood Population and Individuals I...supporting

confidence: 73%

Genetic diversity of rosewood (Dalbergia latifolia) in Yogyakarta, Indonesia for plus trees selection

Riastiwi¹,

WITJAKSONO²,

Ratnadewi

et al. 2022

Biodiversitas

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Abstract. Riastiwi I, Witjaksono, Ratnadewi D, Siregar UJ. 2022. Genetic diversity of rosewood (Dalbergia latifolia) in Yogyakarta, Indonesia for plus trees selection. Biodiversitas 23: 2630-2639. Rosewood (Dalbergia latifolia Roxb.) or sonokeling is an important woody plant species with a high selling value. However, due to overexploitation, this species has been listed in Appendix II of CITES and its trade is strictly regulated. Therefore, the cultivation of this plant needs encouragement, and superior planting materials from selected plus trees are needed. This study aimed to examine the genetic diversity of the rosewood population and select plus trees in Yogyakarta Province, Indonesia. The plus tree selection was performed by comparing plus tree candidates with five other trees nearby in four districts, i.e. Bantul, Gunungkidul, Kulon Progo, and Sleman. As many as 61 plus tree candidates have been identified. Genetic diversity was assessed using 10 selected ISSR primers, resulting in 101 ISSR loci with average Polymorphic Loci values ??of 64.71% and Nei Heterozygosity of 0.23. The highest gene diversity (He=0.29) was found in the Kulon Progo population, and the lowest He=0.17 was in the Bantul population. The dendogram and PCA analysis put Gunungkidul and Bantul populations into one group, separated from the Sleman and Kulon Progo populations. Based on morphological and molecular analysis, six superior plus trees were obtained.

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Section: Genetic Distance Among Rosewood Population and Individuals I...supporting

confidence: 73%

Genetic diversity of rosewood (Dalbergia latifolia) in Yogyakarta, Indonesia for plus trees selection

Riastiwi¹,

WITJAKSONO²,

Ratnadewi

et al. 2022

Biodiversitas

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“…In fact, it has been reported that high levels of genetic diversity are associated with high disturbance. Genetic diversity is closely related to the adaptive capacity of a species and guarantees, both to the individual and to the progeny, the possibility to better adapt when the ecological conditions are less stable and the evolutionary pressures more intense [70].…”

Section: Discussionmentioning

confidence: 99%

An Improved Method for Assessing Simple Sequence Repeat (SSR) Variation in Echinochloa crus-galli (L.) P. Beauv (Barnyardgrass)

et al. 2021

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Echinochloa crus-galli (L.) P. Beauv. (barnyardgrass) is one of the most noxious weeds infesting Italian rice fields. It is characterized by high genetic intraspecific variability and has developed resistance to several classes of herbicides. The aim of our study was to assess, for the first time in Italy, the genetic diversity in E. crus-galli from differently managed rice fields in the Lombardy region (Northern Italy) using eight specific SSR markers. To this purpose, an amplification protocol was optimized, testing different DNA concentrations, PCR mixtures, and temperatures. A total of 48 alleles were identified in 144 samples. SSR fingerprint analysis using R 3.6.3 software (poppr, polysat, and StAMPP) allowed us to handle SSRs as codominant and polyploid data. The results suggested that genetic richness and diversity were high. The analysis of molecular variance (AMOVA) indicated that genetic variation exists mainly between agronomic managements (47.23%) and among populations (37.01%). Hierarchical clustering and PCoA were in concordance with the identification of four distinct genetic groups. Our results confirm that SSR markers represent a valuable and affordable tool for the assessment of E. crus-galli genetic diversity and would grant useful information to plan more targeted, effective, and sustainable control strategies against barnyardgrass. The improved methodology applied here allowed us to assess the genetic variability of an allo-hexaploid species without information loss and biased results.

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“…The structure and levels of genetic diversity of Mexican populations of P. menziesii is still unknown. Some studies suggest the prevalence of reduced sizes, a restricted distribution of populations and other factors that increase inbreeding (Montiel Castelán et al, 2019) and reduced level of diversity, especially in populations in the central region of Mexico (Cruz-Nicolás et al, 2011). This is related to the reduction in seed production, germination problems and initial growth (Ventura Ríos et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Morphological characterization of seeds and germination of Pseudotsuga menziesii (Mirb.) Franco (Pinaceae)

Ríos-Palma¹,

Contreras-Toledo

Pichardo-González

et al. 2019

JNAS

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Pseudotsuga menziesii (Mirb.) Franco is a species of economic and ecological importance for Mexico. Several actions have been implemented for its ex situ conservation. However, the lack of characterization data is a limiting factor in genebanks. In this study, morphological characteristics and seed germination traits were evaluated in 12 accessions of P. menziesii from Tlaxcala and Puebla. Fifteen seed variables, germination percentage (PG), days to germination (DG) and radicle growth (CR) were measured in 100 seeds (four replicas of 25 seeds each) per accession. A principal component analysis, a cluster analysis and the estimation of the relationship between seed variables and germination traits were performed. The variables that had largest influence on the distribution of morphological variation were: LA, ASC, AS and AA/AS. The accessions were distributed in five general groups according mainly to their geographical origin. For some accessions, PG and CR had a direct relationship with seed size variables. These results showed the presence of variation and the influence of seed morphology on the germination of the evaluated accessions.

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Diversity and Genetic Structure Inferred with Microsatellites in Natural Populations of Pseudotsuga menziesii (Mirb.) Franco (Pinaceae) in the Central Region of Mexico

Cited by 6 publications

References 52 publications

Genetic diversity of rosewood (Dalbergia latifolia) in Yogyakarta, Indonesia for plus trees selection

Genetic diversity of rosewood (Dalbergia latifolia) in Yogyakarta, Indonesia for plus trees selection

An Improved Method for Assessing Simple Sequence Repeat (SSR) Variation in Echinochloa crus-galli (L.) P. Beauv (Barnyardgrass)

Morphological characterization of seeds and germination of Pseudotsuga menziesii (Mirb.) Franco (Pinaceae)

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