{"title":"种子性别分析显示两种鲁默斯属植物存在雌性偏向","authors":"D. Kwolek, A. Joachimiak","doi":"10.5586/ASBP.2011.028","DOIUrl":null,"url":null,"abstract":"Sex-ratio bias in seeds of dioecious Rumex species with sex chromosomes is an interesting and still unsettled issue. To resolve gender among seeds of R. acetosa and R. thyrsiflorus (two species with an XX/XY 1 Y 2 sex chro mosome system), this work applied a PCR-based method involving DNA markers located on Y chromosomes. Both species showed female-biased primary sex ratios, with female bias greater in R. acetosa than in R. thyrsi florus . The observed predominance of female seeds is consistent with the view that the female biased sex ratios in Rumex are conditioned not only postzygotically but also prezygotically.","PeriodicalId":389772,"journal":{"name":"Acta Biologica Cracoviensia. Series Botanica. Supplement","volume":"29 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2011-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"10","resultStr":"{\"title\":\"Seed sexing revealed female bias in two Rumex species\",\"authors\":\"D. Kwolek, A. Joachimiak\",\"doi\":\"10.5586/ASBP.2011.028\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Sex-ratio bias in seeds of dioecious Rumex species with sex chromosomes is an interesting and still unsettled issue. To resolve gender among seeds of R. acetosa and R. thyrsiflorus (two species with an XX/XY 1 Y 2 sex chro mosome system), this work applied a PCR-based method involving DNA markers located on Y chromosomes. Both species showed female-biased primary sex ratios, with female bias greater in R. acetosa than in R. thyrsi florus . The observed predominance of female seeds is consistent with the view that the female biased sex ratios in Rumex are conditioned not only postzygotically but also prezygotically.\",\"PeriodicalId\":389772,\"journal\":{\"name\":\"Acta Biologica Cracoviensia. Series Botanica. Supplement\",\"volume\":\"29 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2011-07-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"10\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Acta Biologica Cracoviensia. Series Botanica. Supplement\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.5586/ASBP.2011.028\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Biologica Cracoviensia. Series Botanica. Supplement","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5586/ASBP.2011.028","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 10
摘要
具有性染色体的雌雄异株种的种子性别比例偏倚是一个有趣但仍未解决的问题。本文采用基于聚合酶链反应(pcr)的方法，利用位于Y染色体上的DNA标记，对具有XX/XY - 1 - Y - 2性染色体系统的两种荆芥(R. acetosa)和荆芥(R. thyrsiflorus)种子进行性别鉴定。两种植物的初生性别比例均表现为雌性偏倚，其中荆芥的雌性偏倚大于鸢尾草。观察到的雌性种子的优势与鲁麦斯雌偏性比例不仅受合子后而且受合子前影响的观点一致。
Seed sexing revealed female bias in two Rumex species
Sex-ratio bias in seeds of dioecious Rumex species with sex chromosomes is an interesting and still unsettled issue. To resolve gender among seeds of R. acetosa and R. thyrsiflorus (two species with an XX/XY 1 Y 2 sex chro mosome system), this work applied a PCR-based method involving DNA markers located on Y chromosomes. Both species showed female-biased primary sex ratios, with female bias greater in R. acetosa than in R. thyrsi florus . The observed predominance of female seeds is consistent with the view that the female biased sex ratios in Rumex are conditioned not only postzygotically but also prezygotically.
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