Multiple and asymmetrical origin of polyploid dog rose hybrids (Rosa L. sect. Caninae (DC.) Ser.) involving unreduced gametes
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DOI: 10.1093/aob/mcw217
Abstract: Background and Aims Polyploidy and hybridization are important factors for generating diversity in plants. The species-rich dog roses ( Rosa sect. Caninae ) originated by allopolyploidy and are characterized by unbalanced meiosis producing polyploid egg… read more here.
Keywords: egg cells; sect caninae; caninae; rosa sect ... See more keywords
Polyploidization as an opportunistic mutation: The role of unreduced gametes formation and genetic drift in polyploid establishment
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Evolutionary Biology"
DOI: 10.1111/jeb.14055
Abstract: It is broadly assumed that polyploidy success reflects an increase in fitness associated with whole‐genome duplication (WGD), due to higher tolerance to stressful conditions. Nevertheless, WGD also arises with several costs in neo‐polyploid lineages, like… read more here.
Keywords: establishment; polyploid; drift; genetic drift ... See more keywords
Exploiting Unreduced Gametes for Improving Ornamental Plants
Sign Up to like & getrecommendations! Published in 2022 at "Frontiers in Plant Science"
DOI: 10.3389/fpls.2022.883470
Abstract: The formation of gametes with somatic chromosome number or unreduced gametes (2n gametes) is an important process involved in the origin of polyploid plants in nature. Unreduced gametes are the result of meiotic mutations occurring… read more here.
Keywords: exploiting unreduced; gametes improving; ornamental plants; formation ... See more keywords