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@article{1432941,
author = {Šmarda, Petr and Horová, Lucie and Knápek, Ondřej and Dieck, Heidi and Dieck, Martin and Ražná, Katarína and Hrubík, Pavel and Orloci, Lászlo and Papp, Lászlo and Veselá, Kristýna and Veselý, Pavel and Bureš, Petr},
article_location = {LONDON},
article_number = {55},
doi = {http://dx.doi.org/10.1038/s41438-018-0055-9},
keywords = {gymnosperms; polyploidy (incl. somatic); haploidy; artificial selection; intraspecific genome size variation; dihaploid production; stomatal size; polyembryony},
language = {eng},
issn = {2052-7276},
journal = {Horticulture Research},
title = {Multiple haploids, triploids, and tetraploids found in modern-day "living fossil" Ginkgo biloba},
url = {https://www.nature.com/articles/s41438-018-0055-9},
volume = {5},
year = {2018}
}
TY - JOUR
ID - 1432941
AU - Šmarda, Petr - Horová, Lucie - Knápek, Ondřej - Dieck, Heidi - Dieck, Martin - Ražná, Katarína - Hrubík, Pavel - Orloci, Lászlo - Papp, Lászlo - Veselá, Kristýna - Veselý, Pavel - Bureš, Petr
PY - 2018
TI - Multiple haploids, triploids, and tetraploids found in modern-day "living fossil" Ginkgo biloba
JF - Horticulture Research
VL - 5
IS - 55
SP - 1-12
EP - 1-12
PB - Springer Nature
SN - 20527276
KW - gymnosperms
KW - polyploidy (incl. somatic)
KW - haploidy
KW - artificial selection
KW - intraspecific genome size variation
KW - dihaploid production
KW - stomatal size
KW - polyembryony
UR - https://www.nature.com/articles/s41438-018-0055-9
N2 - Ginkgo biloba, the last extant representative of a lineage of Mesozoic gymnosperms, is one of the few seed plants with an exceptionally long (similar to 300 Myr) evolutionary history free of genome-wide duplications (polyploidy). Despite this genome conservatism, we have recently found a viable spontaneous tetraploid Ginkgo sapling during routine screening of several plants, demonstrating that natural polyploidy is possible in Ginkgo. Here we provide a much wider flow cytometry survey of ploidy in some European Ginkgo collections, and own seedlings (>2200 individuals and similar to 200 cultivars). We found a surprisingly high level of ploidy variation in modern-day Ginkgo and documented altogether 13 haploid, 3 triploid, and 10 tetraploid Ginkgo plants or cultivars, most of them being morphologically distinct from common diploids. Haploids frequently produced polyploid (dihaploid) buds or branches. Tetraploids showed some genome size variation. The surveyed plants provide a unique resource for future Ginkgo research and breeding, and they might be used to accelerate the modern diversification of this nearly extinct plant lineage.
ER -
ŠMARDA, Petr, Lucie HOROVÁ, Ondřej KNÁPEK, Heidi DIECK, Martin DIECK, Katarína RAŽNÁ, Pavel HRUBÍK, Lászlo ORLOCI, Lászlo PAPP, Kristýna VESELÁ, Pavel VESELÝ a Petr BUREŠ. Multiple haploids, triploids, and tetraploids found in modern-day ''living fossil'' Ginkgo biloba. \textit{Horticulture Research}. LONDON: Springer Nature, roč.~5, č.~55, s.~1-12. ISSN~2052-7276. doi:10.1038/s41438-018-0055-9. 2018.
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