| fullrecord |
[{"key": "dc.contributor.advisor", "value": "Kronholm, Ilkka", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Moghadam, Neda", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Summanen, Pauliina", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2020-06-26T05:42:56Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2020-06-26T05:42:56Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2020", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/70935", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Muuttuviin ymp\u00e4rist\u00f6oloihin sopeutumista helpottavat ty\u00f6kalut ovat eli\u00f6ille t\u00e4rkeit\u00e4, koska muutoksen mahdollisuus on luonnossa jatkuvasti l\u00e4sn\u00e4. N\u00e4iden ty\u00f6kalujen joukkoon kuuluvat ylisukupolviset efektit, jotka voivat tarjota j\u00e4lkel\u00e4isille keinoja sopeutumiseen vanhemmilta saatavien vihjeiden v\u00e4lityksell\u00e4. T\u00e4ss\u00e4 tutkielmassa selvitettiin ylisukupolvisten efektien esiintymist\u00e4 Neurospora crassa -kotelosienell\u00e4, ja efektien l\u00f6ytyess\u00e4 niiden siirtomekanismia ja vaikutusta j\u00e4lkel\u00e4isten kilpailukykyyn. Ylisukupolvisia efektej\u00e4 tutkittiin erikseen suhteessa ymp\u00e4rist\u00f6n sakkaroosipitoisuuteen ja l\u00e4mp\u00f6tilaan. N. crassa kantoja kasvatettiin jommassakummassa kahdesta ymp\u00e4rist\u00f6st\u00e4 kahden sukupolven ajan. Kolmannessa sukupolvessa sama m\u00e4\u00e4r\u00e4 iti\u00f6it\u00e4 jokaisesta n\u00e4ytteest\u00e4 siirrettiin kasvamaan ymp\u00e4rist\u00f6\u00f6n, joka oli joko samanlainen tai erilainen vanhempien ymp\u00e4rist\u00f6n kanssa. Siirtomekanismia tutkittiin mutanttikantojen avulla, joilla oli puutteita jonkin epigeneettisen modifikaation tuottamisessa. Lis\u00e4ksi iti\u00f6iden koko mitattiin. Kelpoisuusvaikutuksia selvitettiin kilpailuttamalla eri ymp\u00e4rist\u00f6ist\u00e4 per\u00e4isin olevia rihmastoja toisiaan vastaan. Tulokset osoittavat, ett\u00e4 ylisukupolvisia efektej\u00e4 esiintyy N. crassalla, mutta niiden siirtomekanismi on ep\u00e4varma. Jos vanhemmat tulivat 1.5% sakkaroosipitoisuudesta tai 25 \u00b0C, j\u00e4lkel\u00e4iset kasvoivat paremmin niiden v\u00e4litt\u00f6m\u00e4st\u00e4 ymp\u00e4rist\u00f6st\u00e4 riippumatta. Ylisukupolviset efektit antoivat j\u00e4lkel\u00e4isille my\u00f6s merkitt\u00e4vi\u00e4 kilpailullisia etuja laboratorio-olosuhteissa. N\u00e4iden tulosten perusteella N. crassa pystyy hy\u00f6tym\u00e4\u00e4n ylisukupolvisista efekteist\u00e4 ja siten n\u00e4m\u00e4 efektit voivat olla t\u00e4rkeit\u00e4 my\u00f6s luonnossa.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Tools that help organisms to adjust to environmental changes are important for their survival, as the possibility of change is constantly present in nature. Among these tools are between-generation effects, that can help in adaptation via cues from the parents. The purpose of this thesis was to investigate if between-generation effects exist in ascomycete Neurospora crassa, and if they do, what is their transmission mechanism and effect on offspring fitness. Between-generation effects were studied separately in relation to either sucrose concentration in the environment, or temperature. N. crassa was grown in either of two parental environments for two generations. In the third generation, equal amounts of spores were transferred to grow in an environment that was similar or different to the parental environment. Transmission mechanism was explored using mutant strains with deficiencies in epigenetic mechanisms, and measurements of spore size. Fitness effects were studied by competing marked strains originating from different parental environments against one another. The results show that between-generation effects exist in N. crassa, but the transmission mechanism for these effects is not clear. If the parents originated from environments 1.5% sucrose or 25 \u00b0C, offspring grew better irrespective of their immediate environment. Between-generation effects are also able to give offspring significant competitive advantages in laboratory conditions. Based on these results, N. crassa is able to benefit from between-generation effects and so these effects can be important in nature.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Miia Hakanen (mihakane@jyu.fi) on 2020-06-26T05:42:56Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2020-06-26T05:42:56Z (GMT). No. of bitstreams: 0\n Previous issue date: 2020", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "43", "language": "", "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.format.mimetype", "value": "application/pdf", "language": null, "element": "format", "qualifier": "mimetype", "schema": "dc"}, {"key": "dc.language.iso", "value": "eng", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "between-generation effect", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "maternal effect", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "parental provisioning", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "phenotypic plasticity", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Silver-spoon effects increase competitive fitness in Neurospora crassa", "language": "", "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-202006265123", "language": "", "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Matemaattis-luonnontieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Sciences", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Bio- ja ymp\u00e4rist\u00f6tieteiden laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Biological and Environmental Science", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Ekologia ja evoluutiobiologia", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Ecology and evolutionary biology", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "yvv.contractresearch.funding", "value": "0", "language": "", "element": "contractresearch", "qualifier": "funding", "schema": "yvv"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_bdcc", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "openAccess", "language": null, "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "masterThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.subject.oppiainekoodi", "value": "4011", "language": "", "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "ymp\u00e4rist\u00f6nmuutokset", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "epigeneettinen periytyminen", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "environmental changes", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "epigenetic inheritance", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.format.content", "value": "fulltext", "language": null, "element": "format", "qualifier": "content", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}, {"key": "dc.type.okm", "value": "G2", "language": null, "element": "type", "qualifier": "okm", "schema": "dc"}]
|