Diversification among populations in widely distributed bryophytes

2014 Fiscal Year Final Research Report

• Project/Area Number: 24570108
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Biodiversity/Systematics
• Research Institution: University of Hyogo
• Principal Investigator: AKIYAMA HIROYUKI 兵庫県立大学, 自然・環境科学研究所, 准教授 (70211696)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 蘚類 / 地理的分化 / 塩基配列 / コモチイトゴケ科 / ウニゴケ科 / 分子系統

Outline of Final Research Achievements

Phylogenetic analyses using rbcL, trnL-F, rps4, rpl16 (chloroplast) , nad5 (mitochondria), and ITS1&2 (nuclear) reveal the following points: (1) Symphyodon perrottetii (Musci, Symphyodontaceae), formerly thought to be a single species, is really composed of no less than 3 clades (species), each with distinct morphological features and distribution areas; (2) Two species of Asian genus Clastobryopsis (Musci, Pylaisiadelphaceae), C. robusta and C. brevinervis, have infrageneric variations that should be treated as different species, and Clastobryopsis should be treated as a synonym of Aptychella reported only from Central and South America; (3) both of Yakushimabryum longissimum and Gammiella tonkinensis (Musci, Pylaisiadelphaceae) show least genetic variations among geographically distant population, which suggest heavily dependence to asexual reproduction.

Free Research Field

植物分類学