Spatial Genetic Structure in Seed Stands of Pinus arizonica Engelm. and Pinus cooperi Blanco in the State of Durango, Mexico

Friedrich, Saskia C.; Hernández-Díaz, José Ciro; Leinemann, Ludger; Prieto-Ruíz, José Ángel; Wehenkel, Christian

doi:10.1093/forsci/fxx007

Cited by 11 publications

(11 citation statements)

References 69 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The results thus did not confirm our hypothesis of weak SGS at the population level. Other studies of several Mexican pine species such as P. cembroides, P. discolor, P. durangensis, P. teocote (Hernández-Velasco et al, 2016), P. arizonica and P. cooperi (Friedrich et al, 2018) also detected no too weak SGS at the local scale. Especially for P. cembroides, Hernández-Velasco et al (2016) found no SGS and smaller mean Tanimoto distances (mean 0.52) in three small (≤ 12.1 ha), closely spaced (≤ 10 km) seed stands.…”

Section: Discussionmentioning

confidence: 82%

“…A negative locus-specific component (A) value with posterior probability > 0.99 indicates possible balancing or purifying selection, and positive values of the Α and posterior probability > 0.99 indicate diversifying selection (false discovery rates < 0.01) (Foll & Gaggiotti, 2008;Foll et al, 2010). We used the parameter values of the chain and the model reported by Friedrich et al (2018): output number of iterations (5,000), thinning interval size (10), pilot runs (20), length of pilot runs (5,000), additional burn in (50,000), prior odds for the neutral model (10), a lower boundary for uniform prior in the inbreeding coefficient F IS (0) and a higher boundary for uniform prior in F IS (1).…”

Section: Detecting Aflp Loci Under Natural Selection (Outlier Aflp Loci)mentioning

confidence: 99%

See 1 more Smart Citation

Peer Review #2 of "Spatial genetic structure in Pinus cembroides Zucc. at population and landscape levels in central and northern Mexico (v0.1)"

2019

View full text Add to dashboard Cite

Background Spatial genetic structure (SGS) analysis is a powerful approach to quantifying gene flow between trees, thus clarifying the functional connectivity of trees at population and landscape scales. The findings of SGS analysis may be useful for conservation and management of natural populations and plantations. Pinus cembroides is a widely distributed tree species, covering an area of about 2.5 million hectares in Mexico. The aim of this study was to examine five natural seed stands of P. cembroides in the Sierra Madre Occidental to determine the SGS at population (within the seed stand) and landscape (among seed stands) levels in order to establish guidelines for the conservation and management of the species. We hypothesized that P. cembroides, in which the seeds are dispersed by birds and mammals, creates weaker SGS than species with wind-dispersed seeds. Methods DNA fingerprinting was performed using the amplified fragment length polymorphism (AFLP) technique. In order to estimate the SGS at population and landscape levels, we measured the geographical (spatial) distance as the Euclidean distance. We also estimated the genetic distances between individuals using the pairwise kinship coefficient. Results The results showed non-significant autocorrelation in four out of five seed stands studied (i.e. a mainly random distribution in the space of the genetic variants of P. cembroides at population level).

show abstract

Section: Discussionmentioning

confidence: 82%

Section: Detecting Aflp Loci Under Natural Selection (Outlier Aflp Loci)mentioning

confidence: 99%

Peer Review #2 of "Spatial genetic structure in Pinus cembroides Zucc. at population and landscape levels in central and northern Mexico (v0.1)"

2019

View full text Add to dashboard Cite

show abstract

“…Estos resultados concuerdan con los obtenidos por Ortiz-Olivas et al 2017, quienes estudiaron la diversidad en rodales semilleros de P. engelmannii en el estado de Durango y encontraron una estructura genética espacial definida entre los rodales, por lo que recomendaron utilizar semilla local en los programas de reforestación de P. engelmannii. De igual manera, los resultados de este estudio coincidieron con lo señalado por Friedrich et al (2018) para P. arizonica, quienes encontraron diferencias genéticas entre poblaciones del estado de Durango y recomendaron utilizar genotipos nativos para evitar la pérdida de las estructuras genéticas locales. El utilizar genotipos locales significa utilizar materiales adaptados e incrementar la probabilidad de éxito en programas de reforestación (Mijnsbrugge et al, 2010).…”

Section: Estructura Y Diferenciación Genética De Las Poblacionesunclassified

ESTRUCTURA Y DIVERSIDAD GENÉTICA EN POBLACIONES DE Pinus engelmannii Carr. EN CHIHUAHUA, MÉXICO

Morales-Nieto¹,

Siqueiros-Candia²,

Álvarez-Holguín³

et al. 2020

RevFitotecMex

View full text Add to dashboard Cite

La evaluación de la estructura y diversidad genética de especies forestales contribuye con la formulación de estrategias para preservar su riqueza genética; a su vez, la riqueza genética contribuye significativamente en la adaptación de las especies ante factores o ambientes nuevos, como aquellos derivados del cambio climático. El objetivo del presente estudio fue evaluar la estructura y diversidad genética de tres poblaciones de Pinus engelmannii Carr. en el estado de Chihuahua, México. Las poblaciones se ubican en los municipios de Madera, Bocoyna y Balleza, en el norte, centro y sur del estado, respectivamente. Se analizaron 30 árboles de las tres poblaciones mediante marcadores moleculares AFLP (polimorfismos en la longitud de fragmentos amplificados). Los resultados revelaron que P. engelmannii presenta un nivel de diversidad alto (índice de Shannon I = 0.380, heterocigosidad esperada He = 0.249). La población del centro mostró diferencias (P ≤ 0.05) en el nivel de diversidad (I = 0.364 y He = 0.237) en comparación de las poblaciones norte y sur. Por su parte, las poblaciones del norte y centro no presentaron diferenciación genética significativa (P = 0.28), mientras que la población del sur fue diferente con respecto a las poblaciones del centro (P < 0.045) y norte (P < 0.001). Los sistemas montañosos y cañones del sur del estado parecen actuar como una barrera geográfica que disminuye el flujo genético de las poblaciones del centro y norte con su contraparte del sur, con valores de 5.74 y 3.38 Nm, respectivamente. La estructura genética encontrada en las poblaciones de P. engelmannii sugiere que los programas de reforestación en la región sur del estado de Chihuahua deben llevarse a cabo con materiales locales, mientras que la reforestación para el centro y norte puede realizarse con materiales de ambas regiones, a fin de preservar la estructura y diversidad genética de esta especie.

show abstract

“…In northern Mexico and the southern United States of America, P. engelmannii and P. arizonica Engelm var. arizonica are two of the most important conifers from an ecological and commercial standpoint (Barton, Swetnam & Baisan, 2001;García-Arévalo & González-Elizondo, 2003;Ávila-Flores et al, 2016a;Friedrich et al, 2018). In addition, P. engelmannii is one of the most utilized species in northern Mexico in commercial forest plantations, since this species' wood has a high demand and economic value (Prieto-Ruíz et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Peer Review #2 of "Survival of side grafts with scions from pure species Pinus engelmannii Carr. and the P. engelmannii × P. arizonica Engelm. var. arizonica hybrid (v0.1)"

2020

View full text Add to dashboard Cite

Grafting is one of the most widely used methods for vegetative propagation, particularly for multiplying trees considered important, but there has been little research done on the effect of hybridization on grafts from the genus Pinus. Sometimes hybrids show the ability to reproduce and adapt efficiently to the environment. However, they reduce the genetic gain of seed orchards. The objective in this research was to evaluate the effect of scion grafts from pure species donor Pinus engelmannii Carr. and from putative hybrid trees P. engelmannii. x P. arizonica Engelm., grafted on rootstocks of pure species Pinus engelmannii, along with the effect of the position of the scion in the donor tree crown (upper third and middle third). The scions were collected from three pure species trees and three hybrids. In each tree, 20 scions were collected from each third of the crown evaluated. 120 side-veneer grafts were made at the beginning of spring (March) 2018. Variance analyses were performed to evaluate the treatments and adjustments of the Logit and Weibull models to obtain the probability of graft survival. Significant differences were found between the origins of scions (p ≤ 0.0083, after Bonferroni correction), showing grafts with hybrid tree scions taking hold better. In addition, the probability of survival at five months after grafting with hybrid tree scions was greater (p ≤ 0.0001) than in grafts with pure-species tree scions (Logit model), which coincides with the results of the Weibull model, which indicated that the probability of graft death with pure species donor tree scions is greater than for grafts with hybrid scions. There were no significant differences regarding the position of the scion in the donor tree crown.

show abstract

Spatial Genetic Structure in Seed Stands of Pinus arizonica Engelm. and Pinus cooperi Blanco in the State of Durango, Mexico

Cited by 11 publications

References 69 publications

Peer Review #2 of "Spatial genetic structure in Pinus cembroides Zucc. at population and landscape levels in central and northern Mexico (v0.1)"

Peer Review #2 of "Spatial genetic structure in Pinus cembroides Zucc. at population and landscape levels in central and northern Mexico (v0.1)"

ESTRUCTURA Y DIVERSIDAD GENÉTICA EN POBLACIONES DE Pinus engelmannii Carr. EN CHIHUAHUA, MÉXICO

Peer Review #2 of "Survival of side grafts with scions from pure species Pinus engelmannii Carr. and the P. engelmannii × P. arizonica Engelm. var. arizonica hybrid (v0.1)"

Contact Info

Product

Resources

About