A quick glance at noteworthy articles for September 2021

American Journal of BotanyVolume 108, Issue 9 p. 1577-1579 NEWS & VIEWSFree Access A quick glance at noteworthy articles for September 2021 First published: 28 https://doi.org/10.1002/ajb2.1741AboutSectionsPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text full-text accessPlease review our Terms and Conditions Use check box below share version article.I have read accept the Wiley Online Library UseShareable LinkUse link a this article with your friends colleagues. Learn more.Copy URL Share linkShare onFacebookTwitterLinked InRedditWechat WHEN SHARING ISN'T CARING: DRIVERS OF BETWEEN-SPECIES POLLEN TRANSFER AND ITS EFFECTS ON REPRODUCTION Plant species in community can inadvertently exchange pollen when they rely on shared pollinators. Recent work indicates that “heterospecific transfer” is common but varies dramatically, even among individuals within species. The drivers variation phenomenon its consequences reproduction wild plant populations remain unclear. Smith et al. examined causes fitness heterospecific receipt Oenothera fruticosa. They find pollinator type, composition nearby flowering plants, interaction between those two factors, timing all influence amount received. Natural levels are great enough reduce seed production, negative impact abated large amounts also present. These results suggest although some traits receipt, context has as an influence, favoring tolerance strategy. References Gerard X. 2021. Causes Botany. https://doi.org/10.1002/ajb2.1720Google Scholar ASSOCIATIONS WITH MYCORRHIZAL FUNGI ARE MORE COMMON AMONG HAWAIIAN NATIVE PLANT SPECIES THAN CONTINENTAL mutualism root-inhabiting fungi known mycorrhizae, across most families throughout world. However, due their age isolation, remote oceanic islands such Hawaiʻi been predicted harbor fewer mycorrhizal host than mainlands. In survey 35 native Hawaiian island Oʻahu, Koko found new evidence prevalence symbiosis actually much higher continental averages one youngest earth. focused conservation concern or commonly used ecological restoration, integrating these symbionts into future restoration practices could potentially increase success, especially regions where dominate flora. Jerry H. Island endemic indigenous have. incidence global average. https://doi.org/10.1002/ajb2.1731Wiley LibraryPubMedWeb Science®Google GENETIC SEQUENCING PROVIDES INSIGHT INTO THE RECENT EVOLUTION CHESTNUTS CHINQUAPINS IN NORTH AMERICA Although Chestnuts Chinquapins (Castanea spp.) well known, widely loved trees, evolutionary history remains poorly understood. Using genetic sequencing distribution models, Spriggs Fertakos infer phylogeny Castanea delve recent North lineages. Within Chestnut, there pattern sequential northward migration diverse southern end range Georgia. Meanwhile, multiple population clusters were identified Chinquapins, including group corresponds frequently recognized pumila var. ozarkensis. provide important ongoing efforts follow devastating Chestnut Blight America, highlighted by study will be valuable breeding programs. Elizabeth L. Matthew E. Fertakos. Evolution America: restriction-site-associated DNA modeling reveal radiation, shifts, disease. https://doi.org/10.1002/ajb2.1726Wiley DEPAUPERATE LINEAGES CONTINENT-SPANNING DISJUNCT DISTRIBUTIONS LEGACIES ANCIENT CLIMATE CHANGE Taxa few widespread, geographically discontinuous distributions intriguing. Why species-poor? How did achieve broad, disjunct distribution? Culshaw reconstruct Camptoloma, genus plants three distant margins African continent: Canary Islands west, Somalia-southern Arabia east, Namibia south. This Rand Flora, biogeographic observed angiosperm families, which sister occur ring around Africa, separated thousands kilometers desert tropical lowlands. Genetic genomic data from plastid nuclear genomes Camptoloma's “extreme” was result fragmentation extinction/population bottlenecking events associated historical aridification cycles dating back Early Miocene. narrow distributions, high habitat specificity, small sizes extant make them vulnerable anthropogenic activities value. Victoria Rare widespread: Bayesian MCMC approaches, Sanger Hyb-Seq phylogenomics origin enigmatic Flora Camptoloma. https://doi.org/10.1002/ajb2.1727Wiley METABARCODING REVEALS HIDDEN MICROBIAL DIVERSITY HORNWORTS Hornworts (Anthocerophyta) only phylum form specialized nitrogen-fixing symbioses. interactions hornworts Nostoc cyanobacterial studied decades, environmental diversity partners factors impacting communities still largely unknown. long-read metabarcoding methods, Nelson broad phylogenetic cyanobacteria living temperate hornworts. goes far beyond clades previously contain symbionts. lack strong signal hornwort specificity do show similarity surrounding soils. apparently quite dynamic, vary stochastically over growing season short physical distances. Jessica M. structure symbiotic inferred amplicon sequencing. https://doi.org/10.1002/ajb2.1729Wiley LibraryWeb Volume108, Issue9September 2021Pages ReferencesRelatedInformation