Karyological Studies on Mosses, VII

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  • INOUE Satoru
    Department of Biology, Faculty of Science, Kumamoto University

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  • セン類の核学的研究 VII
  • セン類の核学的研究-7-ハシボソゴケ科,ハイゴケ科およびヒヨクゴケ科に属する14種の核型
  • センルイ ノ カクガクテキ ケンキュウ 7 ハシボソゴケカ , ハイゴケカ オヨビ ヒヨクゴケカ ニ ゾクスル 14シュ ノ カクガタ
  • Karyotypes of Fourteen Species in Sematophyllaceae, Hypnaceae and Hylocomiaceae
  • ハシボソゴケ科, ハイゴケ科およびヒヨクゴケ科に 属する14種の核型

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This paper deals with the results of karyological studies made on fourteen moss species belonging to the Family Sematophyllaceae, Hypnaceae and Hylocomiaceae. In the mitotic cells of gametophytes the metaphase, anaphase and heteropycnotic chromosomes were observed. Chromosome numbers of the three species, Hypnum plumaeforme var. minus, Isopterygium seligeri and Gollania ruginosa, are reported for the first time by the author. However, those of the two species, Acroporium flagelliferum and Taxiphyllum taxirameum, are different from those reported by previous investigators.<br>Furthermore, comparing among these karyotypes, the interspecific and intergeneric relations between them, and the aberrations of H- and/or h-chromosome in the course of the karyotypical evolution have been discussed. The karyotypes of these fourteen species are represented as follows:<br>Sematophyllaceae<br>Heterophyllium haldanianum K(n)=11=V(H)+2V+3J+4(3v+j)+m(h)<br>Acroporium flagelliferum K(n)=10=V(H)+2V+3J+3(3v+j)+m(h)<br>Hypnaceae<br>Hypnum cupressiforme K(n)=10=V(H)+3V+2J+3(2v+j)+m(h)<br>H. oldhamii K(n)=6=V(H)+2V+2J+v(h)<br>H. plumaeforme var. minus K(n)=10=V(H)+3V+2J+(2v+j)+m(h)<br>Isopterygium seligeri K(n)=11=2V(H)+2V+2J+4(2v+2j)+v(h)<br>I. pohliacarpum K(n)=12=2V(H)+2V+2J+4(2v+2j)+2m(h)<br>Taxiphyllum taxirameum K(n)=12=2V(H)+V+J+6(3v+3j)+2m(h)<br>Ctenidium capillifolium K(n)=11=V(H)+2V+2J+5(3v+2j)+m(h)<br>Rhytidiadelphus squarrosus K(n)=10=V(H)+3V+3J+2(v+j)+(h)<br>R. triquestrus K(n)=6=V(H)+2V+2J+v(h)<br>Gollania ruginosa K(n)=10=V(H)+3V+3J+2(v+j)+m(h)<br>Hylocomiaceae<br>Hylocomium brevirostre var.<br>cavifolium K(n)=6=V(H)+2V+2J+j(h)<br>H. pyrenaicum K(n)=12=2V(H)+3V+3J+2(v+j)+2m(h)

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