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I. L. G. Nurtjahjaningsih, I. L. G.
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Agriculture, Biological Sciences & Forestry

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PARENT IDENTIFICATION IN A MULTI LOCATION TRIAL SEED ORCHARD OF ACACIA MANGIUM USING MICROSATELLITE MARKERS Nurtjahjaningsih, I. L. G.
Indonesian Journal of Forestry Research Vol 3, No 1 (2016): Indonesian Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2016.3.1.19-26

Abstract

Parent gametes contribution is one of the important factors that affect on differences of morphologies/ phenotypic of individual tree in a seed orchard. Morphological variations plus trees observed in an opened pollination seed orchard of A. mangium. Parent trees that produce good performance offspring should be identified to increase the efficiency of tree improvement strategies of this species. Thus, aims in this study were to assess mating system and to identify parental trees within a single population first generation SSO that resulted good growth character in a multi location trial of A. mangium. This study was conducted in two types of seed orchard i.e. a single population (SP) F1 and a multi location trial (MLT) plot E of A. mangium at Wonogiri (Central Java). Using ten microsatellite markers for A. mangium, parental analysis was conducted with comparing genetically between plus trees in the SP as a parent trees and thirty two the best rank plus trees in MLT as an offspring and analyzed using program Cervus ver.3.03. Results showed that the plus trees in the MLT orchard originated from various parent gametes contribution in the SP seed orchard. Moreover, the best rank plus trees dominantly originated from single pair between maternal and paternal trees. However, another pollination behavior, a maternal tree was pollinated by two paternal trees. Moreover, a paternal tree pollinated several maternal trees. Similar flowering characteristic of individual trees that originated from same provenance might be responsible to the pattern of mating system in the opened pollination seed orchard. From the results, efficiency on seed orchard management might be proposed.
PARENT IDENTIFICATION IN A MULTI LOCATION TRIAL SEED ORCHARD OF ACACIA MANGIUM USING MICROSATELLITE MARKERS Nurtjahjaningsih, I. L. G.
Indonesian Journal of Forestry Research Vol. 3 No. 1 (2016): Indonesian Journal of Forestry Research
Publisher : Association of Indonesian Forestry and Environment Researchers and Technicians

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2016.3.1.19-26

Abstract

Variation of parent gametes' contribution might affect the growth patterns among offspring produced from seed orchards. This paper studies the mating system statuses and to identify parent trees that produce good growth performance of offspring in seedling seed orchard of A. mangium. The study was conducted in two seed orchards, i.e. a first generation seedling seed orchard (F1 SSO) of A. mangium, used as the parent population hereafter and a multi location trial (MLT) as an offspring population. Based on 10 microsatellite markers, mating system in the F1 SSO was under panmictic equilibrium condition. The good growth trees in the MLT originated from various parent genes contribution in the F1 SSO. Several behaviors were observed: a). the best trees in MLT dominantly originated from singlepair trees, between maternal and paternal trees, in F1 SSO; b). a maternal tree was pollinated by two paternal trees; c). a paternal tree pollinated several maternal trees. Flowering synchronization and genetic compatibility among trees might be responsible for these mating system patterns. In order to maximize seeds production, studies on male and female flowers characteristic should be employed to assess flowering synchronization among individual trees in the seed orchard.
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