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Instrumental and microspatial environmental variability were observed in the spectral features and corrected to reveal underlying genetic variance of biomass composition.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Lignin-derived ions (including\n                      <jats:italic>m\/z<\/jats:italic>\n                      124, 154, 168, 194, 210 and others) were highly impacted by microspatial environmental variation which demonstrates phenotypic plasticity of lignin composition in\n                      <jats:italic>Populus trichocarpa<\/jats:italic>\n                      biomass. Broad-sense heritability of lignin composition after correcting for microspatial and instrumental variation was determined to be\n                      <jats:italic>H<\/jats:italic>\n                      <jats:sup>2<\/jats:sup>\n                      \u2009=\u20090.56 based on py-MBMS ions known to derive from lignin. Heritability of lignin monomeric syringyl\/guaiacyl ratio (\n                      <jats:italic>S<\/jats:italic>\n                      \/\n                      <jats:italic>G<\/jats:italic>\n                      ) was\n                      <jats:italic>H<\/jats:italic>\n                      <jats:sup>2<\/jats:sup>\n                      \u2009=\u20090.81. Broad-sense heritability was also high (up to\n                      <jats:italic>H<\/jats:italic>\n                      <jats:sup>2<\/jats:sup>\n                      \u2009=\u20090.79) for ions derived from other components of the biomass including phenolics (e.g., salicylates) and C5 sugars (e.g., xylose). Lignin and phenolic ion abundances were primarily driven by maternal effects, and paternal effects were either similar or stronger for the most heritable carbohydrate-derived ions.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>We have shown that many biopolymer-derived ions from py-MBMS show substantial phenotypic plasticity in response to microenvironmental variation in plantations. Nevertheless, broad-sense heritability for biomass composition can be quite high after correcting for spatial environmental variation. This work outlines the importance in accounting for instrumental and microspatial environmental variation in biomass composition data for applications in heritability measurements and genomic selection for breeding poplar for renewable fuels and materials.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s13068-021-01908-y","type":"journal-article","created":{"date-parts":[[2021,3,6]],"date-time":"2021-03-06T12:02:37Z","timestamp":1615032157000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Accurate determination of genotypic variance of cell wall characteristics of a\u00a0Populus trichocarpa\u00a0pedigree using high-throughput pyrolysis-molecular beam mass spectrometry"],"prefix":"10.1186","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7927-9424","authenticated-orcid":false,"given":"Anne E.","family":"Harman-Ware","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David","family":"Macaya-Sanz","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chanaka Roshan","family":"Abeyratne","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Crissa","family":"Doeppke","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kathleen","family":"Haiby","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gerald A.","family":"Tuskan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brian","family":"Stanton","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephen P.","family":"DiFazio","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mark F.","family":"Davis","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2021,3,6]]},"reference":[{"issue":"1","key":"1908_CR1","doi-asserted-by":"publisher","first-page":"24","DOI":"10.1186\/s12864-015-1215-z","volume":"16","author":"W Muchero","year":"2015","unstructured":"Muchero W, Guo J, DiFazio SP, Chen J-G, Ranjan P, Slavov GT, et al. 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