Genome Analysis of <i>Allium wakegi</i> Araki

DOI JASI Web Site Web Site 6 Citations 4 References

Bibliographic Information

Other Title
  • ワケギ (<i>Allium wakegi</i> Araki) のゲノム分析
  • ワケギ(Allium wakegi Araki)のゲノム分析〔英文〕
  • ワケギ Allium wakegi Araki ノ ゲノム ブンセキ エイブン
  • Genome Analysis of Allium wakegi Araki

Search this article

Abstract

Karyotypes and chromosome pairings were investigated in the triploid hybrid (2n=24) between the tetraploid Allium wakegi and A. ascalonicum and in the triploid hybrid (2n=24) between the tetraploid A. wakegi and A. fistulosum.<br>In the somatic chromosome complements of both triploid hybrids 8 pairs of chromosomes and 8 single chromosomes could be morphologically distinguished, and the karyotypes were respectively expressed by the following formulas: K(2n)=2(7V+J(t)1) +(7V+JT2), K(2n)=(7V+J1)+2(7V+JT2). At metaphase-I in the pollen mother cells of both triploid hybrids, 8 bivalents and 8 univalents were regularly formed. The members of morphological pairs in the somatic chromosome complements and bivalents in the meiotic cells were relatively large in the hybrid between the tetraploid A. wakegi and A. ascalonicum, while relatively small in the hybrid between the tetraploid A. wakegi and A. fistulosum. Moreover, the meiotic behaviors of the triploid hybrids were quite similar to those of the first backcrosses of amphidiploid hybrids between A. ascalonicum and A. fistulosum.<br>From these results it can be concluded that A. wakegi is an allodiploid plant and has 2 component genomes, one of which is homologous with the genome of A. ascalonicum and the other with the genome of A. fistulosum.

Journal

Citations (6)*help

See more

References(4)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top