CYTOLOGICAL STUDIES ON BEGONIA EVANSIANA ANDR. WITH SPECIAL REFERENCE TO ITS MEIOTIC CHROMOSOMES

スポンサーリンク

概要

• 論文の詳細を見る

• Twenty six somatic chromosomes were analysed morphologically. From prometaphase to metaphase, trabants have been frequently observed in two paired chromosomes but unfortunately such figures do not always exhibit to the best advantage.In B. Evansiana, meiotic chromosomes were first demonstrated by the present study. The secondary association of meiotic chromosome has also been described. The following various types of secondary association were ascertained. (i) 6(2)+1(1), (ii) 5(2)+3(1), (iii) 4(2)+5(1), (iv) 3(2)+7(1), (v) 2(2)+9(1), (vi) 1(2)+11(1) and (vii) 13(1). Six groups of two bivalents and one bivalent was the maximum type.B. Evansiana may be a secondary balanced allopolyploid based on n=6 and 7 which is the primary basic number.

• 日本遺伝学会の論文

著者

• OKUNO SHUN

  Biological Institute, Utsunomiya University

• NAGAI SHIZUE

  Biological Institute, Utsunomiya University

関連論文

• KARYOTYPIC POLYMORPHISM IN BEGONIA TUBEROHYBRIDA VOSS
• CYTOLOGICAL STUDIES ON BEGONIA EVANSIANA ANDR. WITH SPECIAL REFERENCE TO ITS MEIOTIC CHROMOSOMES
• Cytological studies on potatoes with some remarks on genetical experiments. Part II.

スポンサーリンク