{"title":"尼泊尔凤蝶科一些分类群减数分裂行为的研究","authors":"L. Manandhar, S. Sakya","doi":"10.3126/JNHM.V26I0.14131","DOIUrl":null,"url":null,"abstract":"This paper reports studies of meiotic behaviors of seventeen species, sub-species and varieties in seven genera of the Nepalese Papilionaceae and new chromosome numbers for three species ( Crotalaria cytisoides Roxb. ex DC (n=8), Parochetus communis Buch-Ham. ex D. Don (n=8) and Piptanthus nepalensis (Hook.) D. Don. (n=9, 18) are new number reports. Meiotic behaviors are often normal in all the species). However, a few aberrations like univalents, chromosome bridges, laggards, precocious chromosomes and/ or cytomixis have been observed in most of the taxa. Pollen fertility is high (more than 80%) indicating that the abnormalities had not reached mature stages. J. Nat. Hist. Mus. Vol. 26, 2012: 68-79","PeriodicalId":89691,"journal":{"name":"Journal of natural history museum","volume":"26 1","pages":"68-79"},"PeriodicalIF":0.0000,"publicationDate":"2015-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"STUDIES OF MEIOTIC BEHAVIORS IN SOME TAXA OF THE NEPALESE PAPILIONACEAE\",\"authors\":\"L. Manandhar, S. Sakya\",\"doi\":\"10.3126/JNHM.V26I0.14131\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper reports studies of meiotic behaviors of seventeen species, sub-species and varieties in seven genera of the Nepalese Papilionaceae and new chromosome numbers for three species ( Crotalaria cytisoides Roxb. ex DC (n=8), Parochetus communis Buch-Ham. ex D. Don (n=8) and Piptanthus nepalensis (Hook.) D. Don. (n=9, 18) are new number reports. Meiotic behaviors are often normal in all the species). However, a few aberrations like univalents, chromosome bridges, laggards, precocious chromosomes and/ or cytomixis have been observed in most of the taxa. Pollen fertility is high (more than 80%) indicating that the abnormalities had not reached mature stages. J. Nat. Hist. Mus. Vol. 26, 2012: 68-79\",\"PeriodicalId\":89691,\"journal\":{\"name\":\"Journal of natural history museum\",\"volume\":\"26 1\",\"pages\":\"68-79\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-12-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of natural history museum\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3126/JNHM.V26I0.14131\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of natural history museum","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3126/JNHM.V26I0.14131","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
STUDIES OF MEIOTIC BEHAVIORS IN SOME TAXA OF THE NEPALESE PAPILIONACEAE
This paper reports studies of meiotic behaviors of seventeen species, sub-species and varieties in seven genera of the Nepalese Papilionaceae and new chromosome numbers for three species ( Crotalaria cytisoides Roxb. ex DC (n=8), Parochetus communis Buch-Ham. ex D. Don (n=8) and Piptanthus nepalensis (Hook.) D. Don. (n=9, 18) are new number reports. Meiotic behaviors are often normal in all the species). However, a few aberrations like univalents, chromosome bridges, laggards, precocious chromosomes and/ or cytomixis have been observed in most of the taxa. Pollen fertility is high (more than 80%) indicating that the abnormalities had not reached mature stages. J. Nat. Hist. Mus. Vol. 26, 2012: 68-79
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