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Sexual dimorphism in the size of nuclei with dioecious plants

Sexuální dimorflsmus ve velikosti jader u dvoudomých rostlin

Сек суа ль няй диморфизм в разме реах яде р двудом ных ра-етени щ

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Biologia Plantarum

Abstract

Measurements of the size of the nuclei of dioecious plants showed that the nuclei of male and female plants differ in agreement with the larger quantity of chromatin. The male. plants ofRumex acetosella andMelandrium album had larger nuclei, their Y chromosome being larger than the X chromosome, the same is true forRumex acetosa where the Y chromosome is smaller but there are two in the set.Ginkgo biloba had larger female nuclei because the Y chromosome was smaller than the X. The curves obtained by grouping all the nuclei of both sexes never had two peaks with regard to the small differences between the classes of maximum frequency.

Abstract

Při proměřování velikosti jader dvoudomých rostlin jsem zjiatila, že jádra rostlin samčích a samičích se od sebe liší v souhlase s většim množstvím chromatinove hmoty. Větší jádra měly samči rostlinyRumex acetosella a Melandrium album, u nichž je Y chromoóm větši než X a dále uRumex acetosa, kde je sice Y chromozóm menši, ale jsou v sádce dva. Větši jádra samiči byla uGinkgo biloba, kde jsem zjistila menši Y chromozóm než X. Křivky, vzniklé grupovánim všech jader obou pohlavi nebyly však vzhledem k malým rozdilům mezi maximálně frekventovanými třidami nikdy dvouvrcholové.

Abstract

Ha основании и3мерении ра3меров ер вуомных растении установлено тора енскиX и муискиX растении в3аимно отлиаотси в соответствии с олввсивс колиеством хроматинового вемества. волвими ирами оаати мукские растениRumex acetosella иMelandrium album, у котортроосоа у олвmе по сравненик) с xромосомои X, и алве Rumex acetosa, гле Xот и xромосома у меве но она присутствует в наборе в сле авуx. кенские ра болве у Ginkgo biloba, гае усvгановлена мно xромосоа у менве X. кривве, воникие групггрование всеx ер ооиX поов онако, в сви с мавми ра3лиими меку максималвно реквентированнми классами никога не облапали вум пками.

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Pazourková, Z. Sexual dimorphism in the size of nuclei with dioecious plants. Biol Plant 8, 86–96 (1966). https://doi.org/10.1007/BF02971558

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