Multiple Mechanisms and Challenges for the Application of Allopolyploidy in Plants

International Journal of Molecular Sciences

Kenji Osabe⁵  Takahiro Kawanabe¹  Taku Sasaki¹  Ryo Ishikawa⁴  Keiichi Okazaki²  Elizabeth S. Dennis⁵  Tomohiko Kazama³ 

[1] Watanabe Seed Co., Ltd, Machiyashiki, Misato-cho, Miyagi 987-8607, Japan; E-Mail:;Graduate School of Science and Technology, Niigata University, Ikarashi-ninocho, Niigata 950-2181, Japan; E-Mail:;Graduate School of Agricultural Science, Tohoku University, Aoba-ku, Sendai 981-8555, Japan; E-Mail:;Laboratory of Plant Breeding, Graduate School of Agricultural Science, Kobe University, Nada, Kobe 657-8510, Japan; E-Mail:;Commonwealth Scientific and Industrial Research Organisation (CSIRO) Plant Industry, Canberra, ACT 2601, Australia; E-Mails:

关键词: allopolyploid;    self-compatibility;    cytoplasmic male sterility;    reproductive barrier;    epigenetics;   

DOI  :  10.3390/ijms13078696

来源: mdpi

【 摘 要 】

An allopolyploid is an individual having two or more complete sets of chromosomes derived from different species. Generation of allopolyploids might be rare because of the need to overcome limitations such as co-existing populations of parental lines, overcoming hybrid incompatibility, gametic non-reduction, and the requirement for chromosome doubling. However, allopolyploids are widely observed among plant species, so allopolyploids have succeeded in overcoming these limitations and may have a selective advantage. As techniques for making allopolyploids are developed, we can compare transcription, genome organization, and epigenetic modifications between synthesized allopolyploids and their direct parental lines or between several generations of allopolyploids. It has been suggested that divergence of transcription caused either genetically or epigenetically, which can contribute to plant phenotype, is important for the adaptation of allopolyploids.

【 授权许可】

CC BY   
© 2012 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.