Results 21 to 30 of about 3,086 (187)

EVOLUTIONARY DYNAMICS OF AUTOPOLYPLOIDS IN NATURAL POPULATIONS: THE CASE OF TURNERA SIDOIDES COMPLEX [PDF]

open access: yesBAG. Journal of Basic and Applied Genetics, 2022
Turnera sidoides (x=7) is one of the few well-studied South American autopolyploid complexes. Since polyploidy has played a prominent role within this complex, ongoing studies in T.
Kovalsky I.E.   +11 more
doaj   +1 more source

A Trojan horse inside the gates: Alien-native mating interactions in mixed populations of Solidago taxa. [PDF]

open access: yesPlant Biol (Stuttg)
DAPI flow cytometry identified post‐invasion processes—hybridisation, introgression, and polyploidization—in mixed populations of Solidago canadensis, S. virgaurea and S. ×niederederi. Abstract The establishment and possible impacts of alien–native hybrids depend on their formation frequency and ability to spread using generative and vegetative ...
Skokanová K   +3 more
europepmc   +2 more sources

Substantial non-homologous recombination and structural variation results from Brassica AABC and CCAB hybrid meiosis. [PDF]

open access: yesPlant J
SUMMARY Meiotic crossovers contribute to genetic diversity and play a crucial role in homologous chromosome segregation. Non‐homologous crossovers in Brassica, involving the exchange of genetic material between genomes, can be valuable for transferring novel traits or characteristics between Brassica species.
Lv Z, Mahmoudi S, Mason AS.
europepmc   +2 more sources

Multiple hybrid zones involving four Cardamine species and their triploid progeny: watching allopolyploid speciation in action? [PDF]

open access: yesNew Phytol
Summary Hybrid zones provide excellent opportunities to study evolutionary processes linked to interspecific gene flow, including introgression, genetic erosion, polyploid establishment, and speciation. The genus Cardamine (Brassicaceae) serves as an excellent model for polyploid evolution, including one of the few well‐documented neo‐allopolyploid ...
Zozomová-Lihová J   +5 more
europepmc   +2 more sources

Advances and Perspectives for Polyploidy Breeding in Orchids

open access: yesPlants, 2022
The orchid market is a dynamic horticultural business in which novelty and beauty command high prices. The two main interests are the development of flowers, from the miniature to the large and showy, and their fragrance.
Pablo Bolaños-Villegas, Fure-Chyi Chen
doaj   +1 more source

The Hybridization Barrier between Herbaceous Medicago sativa and Woody M. arborea Is Weakened by Reproductive Abnormalities in M. sativa Seed Parents

open access: yesPlants, 2023
Historically, crosses between Medicago sativa (alfalfa) and M. arborea with alfalfa as the seed parent failed, as did crosses using M. arborea as the seed parent. Thus, a reproductive barrier kept the two species isolated until early in this century. The
Edwin Bingham, John Irwin
doaj   +1 more source

Siberian gene pool of steppe cherry polyploids (Prunus fruticosa Pall.): cytomorphological estimation and prospects for breeding

open access: yesBIO Web of Conferences, 2020
The first spontaneous cherry polyploids were detected in the Altai gene pool of Russia and inside of the interspecific hybrids of Prunus fruticosa Pall. only.
Mochalova Olga V.
doaj   +1 more source

Visualizing and Inferring Chromosome Segregation in the Pedigree of an Improved Banana Cultivar (Gold Finger) with Genome Ancestry Mosaic Painting

open access: yesHorticulturae, 2023
Banana breeding faces numerous challenges, such as sterility and low seed viability. Enhancing our understanding of banana genetics, notably through next-generation sequencing, can help mitigate these challenges.
Alberto Cenci   +6 more
doaj   +1 more source

Abnormal meiosis in an intersectional allotriploid of Populus L. and segregation of ploidy levels in 2x × 3x progeny. [PDF]

open access: yesPLoS ONE, 2017
Triploid plants are usually highly aborted owing to unbalanced meiotic chromosome segregation, but limited viable gametes can participate in the transition to different ploidy levels.
Jun Wang   +4 more
doaj   +1 more source

Unreduced megagametophyte production in lemon occurs via three meiotic mechanisms, predominantly second-division restitution [PDF]

open access: yes, 2017
Unreduced (2n) gametes have played a pivotal role in polyploid plant evolution and are useful for sexual polyploid breeding in various species, particularly for developing new seedless citrus varieties.
Houssem Rouiss   +5 more
core   +2 more sources

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