菟丝子属（菟丝子科）种内形态中花粉减数分裂和生活力的分析

Q4 Agricultural and Biological Sciences

Lilloa Pub Date : 2018-06-07 DOI:10.30550/J.LIL/2018.55.1/1

A. R. Andrada, V. D. L. A. Páez, María I. Toranzo, Graciela E. Ruíz de Bigliardo

{"title":"菟丝子属（菟丝子科）种内形态中花粉减数分裂和生活力的分析","authors":"A. R. Andrada, V. D. L. A. Páez, María I. Toranzo, Graciela E. Ruíz de Bigliardo","doi":"10.30550/J.LIL/2018.55.1/1","DOIUrl":null,"url":null,"abstract":"In family Cuscutaceae the Cuscuta genus comprises holo-parasitic plants that have cosmopolitan distribution. The genus includes three subgenera: Cuscuta , Monogyna and Grammica ; the last one is widely distributed in the American continent. In this work, flower morphology, meiotic studies and pollen viability of 4 natural populations of Cuscuta parodiana subgenus Grammica are presented. The flower morphology allow us to differentiate 4 morpho- types through corolla and gynoecium traits. Three entities analyzed were tetraploids (n = 30), and one was of them diploid (n = 15). Trivalent and tetravalent chromosomal configurations, chromatin bridges, chromosomes outside of metaphasic plate, cytomixis and extranuclear spherical bodies were observed during meiosis","PeriodicalId":33272,"journal":{"name":"Lilloa","volume":" ","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2018-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Análisis de la meiosis y viabilidad del polen en morfotipos intraespecíficos de Cuscuta paradiana (Cuscutaceae)\",\"authors\":\"A. R. Andrada, V. D. L. A. Páez, María I. Toranzo, Graciela E. Ruíz de Bigliardo\",\"doi\":\"10.30550/J.LIL/2018.55.1/1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In family Cuscutaceae the Cuscuta genus comprises holo-parasitic plants that have cosmopolitan distribution. The genus includes three subgenera: Cuscuta , Monogyna and Grammica ; the last one is widely distributed in the American continent. In this work, flower morphology, meiotic studies and pollen viability of 4 natural populations of Cuscuta parodiana subgenus Grammica are presented. The flower morphology allow us to differentiate 4 morpho- types through corolla and gynoecium traits. Three entities analyzed were tetraploids (n = 30), and one was of them diploid (n = 15). Trivalent and tetravalent chromosomal configurations, chromatin bridges, chromosomes outside of metaphasic plate, cytomixis and extranuclear spherical bodies were observed during meiosis\",\"PeriodicalId\":33272,\"journal\":{\"name\":\"Lilloa\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-06-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Lilloa\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.30550/J.LIL/2018.55.1/1\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"Agricultural and Biological Sciences\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Lilloa","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.30550/J.LIL/2018.55.1/1","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Agricultural and Biological Sciences","Score":null,"Total":0}

引用次数: 0

摘要

在菟丝子科中，菟丝子属由全寄生植物组成，分布在世界各地。该属包括三个亚属：菟丝子属、单核属和禾本科；最后一种广泛分布于美洲大陆。本文介绍了菟丝子亚属4个自然种群的花形态、减数分裂研究和花粉活力。花的形态使我们能够通过花冠和雌蕊群的特征来区分4种形态类型。分析的三个实体是四倍体（n=30），其中一个是二倍体（n=15）。减数分裂过程中观察到三价和四价染色体构型、染色质桥、中期板外染色体、细胞混合和核外球形体

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Análisis de la meiosis y viabilidad del polen en morfotipos intraespecíficos de Cuscuta paradiana (Cuscutaceae)

In family Cuscutaceae the Cuscuta genus comprises holo-parasitic plants that have cosmopolitan distribution. The genus includes three subgenera: Cuscuta , Monogyna and Grammica ; the last one is widely distributed in the American continent. In this work, flower morphology, meiotic studies and pollen viability of 4 natural populations of Cuscuta parodiana subgenus Grammica are presented. The flower morphology allow us to differentiate 4 morpho- types through corolla and gynoecium traits. Three entities analyzed were tetraploids (n = 30), and one was of them diploid (n = 15). Trivalent and tetravalent chromosomal configurations, chromatin bridges, chromosomes outside of metaphasic plate, cytomixis and extranuclear spherical bodies were observed during meiosis

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Lilloa Agricultural and Biological Sciences-Ecology, Evolution, Behavior and Systematics

CiteScore

0.50

自引率

0.00%

发文量

审稿时长

20 weeks