Genetic variation in resin yield and covariation with tree growth in maritime pine

Vázquez‐González, Carla; López‐Goldar, Xosé; Alı́a, Ricardo; Bustingorri, Gloria; Lario, Francisco José; Márquez, Margarita Lema; Mata, Raúl de la; Sampedro, Luís; Touza, Roberto; Zas, Rafael

doi:10.1016/j.foreco.2020.118843

Cited by 23 publications

(12 citation statements)

References 47 publications

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“…Our finding that phenological traits (budburst and bud set) had higher narrow sense heritability than growth traits (height and annual increment) has also been reported in Quercus robur (Scotti‐Saintagne et al, 2004). Similarly, high narrow sense heritability for budburst has been estimated in other conifers ( P. abies , h 2 = 0.8: Aitken & Hannerz, 2001) as has moderate narrow sense heritability for height ( P. pinaster , h 2 = 0.37: Vazquez‐Gonzalez et al, 2021). Variation in narrow sense heritability across years, as was observed in this study, was also reported for Q. robur ( h 2 = 0.48–0.80; Bogdan et al, 2004) and P. taeda ( h 2 = 0–0.75; Balocchi et al, 1993), so we might expect the accuracy of genomic prediction to vary considerably by species and by trait.…”

Section: Discussionmentioning

confidence: 77%

Identifying and testing marker–trait associations for growth and phenology in three pine species: Implications for genomic prediction

Perry

Wachowiak

Beaton

et al. 2022

Evolutionary Applications

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In tree species, genomic prediction offers the potential to forecast mature trait values in early growth stages, if robust marker–trait associations can be identified. Here we apply a novel multispecies approach using genotypes from a new genotyping array, based on 20,795 single nucleotide polymorphisms (SNPs) from three closely related pine species (Pinus sylvestris, Pinus uncinata and Pinus mugo), to test for associations with growth and phenology data from a common garden study. Predictive models constructed using significantly associated SNPs were then tested and applied to an independent multisite field trial of P. sylvestris and the capability to predict trait values was evaluated. One hundred and eighteen SNPs showed significant associations with the traits in the pine species. Common SNPs (MAF > 0.05) associated with bud set were only found in genes putatively involved in growth and development, whereas those associated with growth and budburst were also located in genes putatively involved in response to environment and, to a lesser extent, reproduction. At one of the two independent sites, the model we developed produced highly significant correlations between predicted values and observed height data (YA, height 2020: r = 0.376, p < 0.001). Predicted values estimated with our budburst model were weakly but positively correlated with duration of budburst at one of the sites (GS, 2015: r = 0.204, p = 0.034; 2018: r = 0.205, p = 0.034–0.037) and negatively associated with budburst timing at the other (YA: r = −0.202, p = 0.046). Genomic prediction resulted in the selection of sets of trees whose mean height was taller than the average for each site. Our results provide tentative support for the capability of prediction models to forecast trait values in trees, while highlighting the need for caution in applying them to trees grown in different environments.

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Section: Discussionmentioning

confidence: 77%

Identifying and testing marker–trait associations for growth and phenology in three pine species: Implications for genomic prediction

Perry

Wachowiak

Beaton

et al. 2022

Evolutionary Applications

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“…As usually detected in many Pinus species, resin yield is genetically controlled and genetically or phenotypically correlated with tree size. Significant variations among families in resin yield were detected in P. massoniana 20 , 31 , P. caribaea 32 , P. elliottii 21 and P. pinaster 33 . At the phenotypic level, resin yields were mostly significantly correlated with DBH, while weak correlations or no significant correlations were found with height 20 , 32 .…”

Section: Discussionmentioning

confidence: 98%

Efficient resin production using stimulant pastes in Pinus elliottii × P. caribaea families

Liu

Wang

FenCheng

et al. 2022

Sci Rep

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To address the increasing labor cost of resin tapping, more efficient methods for resin tapping need to be developed. This study aimed to evaluate the features of resinosis as affected by stimulant pastes in Pinus elliottii × P. caribaea, which is also one of the predominant resin-producing species hybrids in South China. The resin yields and resin compositions were assessed in 33 P. elliottii × P. caribaea F1 families, with the application of four kinds of chemical stimulants, potassium (K2SO4) paste, naphthalene acetic acid (NAA) paste, benzoic acid (BA) paste and 2-chloroethylphosphonic acid (CEPA) paste. Our results showed that all four pastes significantly increased the resin yield by at least 20% at each tapping, and 3- to fivefold increases were detected at the beginning of each year. The correlations between resin yield and growth at each tapping ranged from uncorrelated to moderately positively correlated, indicating that resin yield was mostly but not always determined by tree size. The concentration of each resin component did not change with the stimulant applications. In P. elliottii × P. caribaea, selecting a larger tree diameter at breast height and employing the chemical stimulants at the first several tapping rounds are efficient tapping procedures. Moreover, the K2SO4-based stimulant can be recommended considering its promoting effects on resin yield and the low cost of the chemicals required to produce it.

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“…Then we applied 50 % sulfuric acid immediately after performing the wound with a syringe (Schopmeyer et al, 1954;Oliveira, 1987). The acid worked as a stimulant to obtain the maximum yield and increase the duration of the flow (Clements, 1974;Parham, 1976;Vázquez-González et al, 2021). We placed a slightly bent metal sheet below the wound so that the resin could flow directly into a pre-weighed, 50 ml, polyethylene container that was attached to the tree.…”

Section: Resin Yield Assessmentmentioning

confidence: 99%

“…Several studies have shown that resin yield is a heritable trait (Lai et al, 2017;Roberds et al, 2003;Westbrook et al, 2013;Lai et al, 2020;Vázquez-González et al, 2021). Other studies suggest that resin duct traits are importantly associated to productivity of pine resin species (Schopmeyer et al, 1954;Boschiero and Tomazzello-Filho, 2012;Rodríguez-García et al, 2014;Neis et al, 2019b).…”

Section: Introductionmentioning

confidence: 99%

“…In this work we hypothesized that if traumatic duct traits are highly heritable at family level, their association with resin yield would be a central issue, in order to eventually focus the selection process on the traumatic ducts and achieve an increase in the resin yield of Pinus oocarpa trees. The decision of on what trait need to be focused the selection process on a breeding program, is a major decision, and difficult to take when according to plant defense theory (Coley, 1985;Herms and Matson, 1992), growth and defenses may trade-off; thus, negative associations between resin flow and growth may also be expected, as has been recently observed in other highly tapped pine species (Zas et al, 2020a;Vázquez González et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Traumatic ducts size varies genetically and is positively associated to resin yield of Pinus oocarpa open-pollinated progenies

et al. 2022

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Mexico ranks 5th in worldwide resin production. Pinus oocarpa is the most widely tapped pine tree in Mexico. Michoacán (central-western Mexico) is the first nationwide state producer of resin. Despite the P. oocarpa relevance, there is no genetic improvement program in the country for resin production. We evaluated the degree of genetic control for growth, anatomical traits, resin yield, and the correlation among them at an early age (five-years-old for growth, six for resin, and anatomical traits) in a P. oocarpa half-sib progeny trial. Families were originated from selected mother trees, based on their resin yield. We found significant genetic variation among families for stem volume (h 2 i = 0.12, h 2 f = 0.35), traumatic ducts (diameter: h 2 i = 0.63, h 2 f = 0.51; area: h 2 f = 0.81), and resin yield (individual and family narrow-sense heritability: h 2 i = 0.20, h 2 f = 0.52), and a positive correlation between diameter and area of traumatic ducts with resin yield (Pearson correlation: r= 0.73, p= 0.04; r= 0.71, p= 0.0497; respectively). Results suggest that the early selection (six-years-old) of superior P. oocarpa families, based on resin yield (estimated by microchipping technique), and/or based on larger diameter and area of traumatic ducts, appears to be a feasible strategy to develop seed orchards able to provide genetically improved seeds for intensive resin tree plantations. That would be an important alternative for a state as Michoacán, Mexico, where natural P. oocarpa stands are being replaced for avocado orchards for exportation.

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Genetic variation in resin yield and covariation with tree growth in maritime pine

Cited by 23 publications

References 47 publications

Identifying and testing marker–trait associations for growth and phenology in three pine species: Implications for genomic prediction

Identifying and testing marker–trait associations for growth and phenology in three pine species: Implications for genomic prediction

Efficient resin production using stimulant pastes in Pinus elliottii × P. caribaea families

Traumatic ducts size varies genetically and is positively associated to resin yield of Pinus oocarpa open-pollinated progenies

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