Is there aneuploid evolution? (II) Comparative genome analysis and verification by production of alien chromosome addition line

2017 Fiscal Year Final Research Report

• Project/Area Number: 25711024
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Biodiversity/Systematics
• Research Institution: Chiba University
• Principal Investigator: KIKUCHI SHINJI 千葉大学, 大学院園芸学研究科, 助教 (80457168)
• Project Period (FY): 2013-04-01 – 2018-03-31
• Keywords: 異数体 / トレニア / 染色体 / 種分化 / FISH解析 / 遺伝資源

Outline of Final Research Achievements

During meiosis in interspecific hybrids of T. fournieri (2n=2x=18) x T. baillonii (2n=2x=16), eight bivalents by interspecific pairing and a univalent of T. fournieri chromosome were observed, Phylogenetic analysis suggests a hypothesis that T. baillonii lost the chromosome during the speciation. In order to verily the hypothesis, comparative genome analysis of T. fournieri and T. baillonii was conducted. The results indicated that T. baillonii genomic DNAs can find on all nine of T. fournieri chromosomes and the loss of a chromosome pair might be not true during the speciation.

Free Research Field

細胞遺伝学