DNA systematical study on the Larix relicted at Mt. Manokami, the Zao Mountains

S. Shiraishi, K. Isoda, Atsushi Watanabe, H. Kawasaki

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10 Citations (Scopus)

Abstract

Mt. Manokami. the Zao Mountains has been defined as the northernmost natural distribution of Japanese larch (Larix kaempferi). The larch of Mt. Manokami is similar to Kurile larch (L. gmelinii var. japonica) in morphological and physiological characteristics rather than Japanese larch. This made quite a few researchers doubtful whether the larch was classified as Japanese larch recently. In this paper, DNA systematical study was carried out in order to reveal the phylogenetical relationship of this larch and to estimate its genetic diversity. The chloroplast genome and nuclear genome of Manokami larch were compared with Japanese larch in the Central Japan. Kurile larch and Korean larch (L. gmelinii var. olgensis). The rbcL gene sequence of Manokami larch was completely the same as Japanese larch, but it was different from the sequences of Kurile larch and Korean larch. This result made it clear that Manokami larch was closely related to Japanese larch phylogenetically. RAPD analysis of nuclear genome supported this result. The nuclear genome compositions between Manokami larch and Japanese larch, however, were different, and genetic differentiation was recognized. The genetic differentiation and morphological difference between them suggested that Manokami larch should be classified as a variety of L. kaempferi. Manokami larch that is small population size was poor of genetic diversity as a result of bottle neck effect.

Original languageEnglish
Pages (from-to)175-182
Number of pages8
JournalNihon Ringakkai Shi/Journal of the Japanese Forestry Society
Volume78
Issue number2
Publication statusPublished - 1996

Fingerprint

Larix
Larix kaempferi
genome
mountains
DNA
mountain
genetic differentiation
nuclear genome
genetic variation
chloroplast
population size
gene
bottles
Genome
geographical distribution
researchers
Japan

All Science Journal Classification (ASJC) codes

  • Agricultural and Biological Sciences (miscellaneous)

Cite this

DNA systematical study on the Larix relicted at Mt. Manokami, the Zao Mountains. / Shiraishi, S.; Isoda, K.; Watanabe, Atsushi; Kawasaki, H.

In: Nihon Ringakkai Shi/Journal of the Japanese Forestry Society, Vol. 78, No. 2, 1996, p. 175-182.

Research output: Contribution to journalArticle

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