Arid
Sex ratio and spatial distribution of pistillate and staminate plants of Dasylirion cedrosanum
Reyes-Valdes, M. H.1; Hernandez-Quintero, J. D.1,2; Morales-Reyes, Y. A.1,3; Mendoza-Rodriguez, D. V.1; Gonzalez-Uribe, D. U.1; Ramirez-Godina, F.1; Villarreal-Quintanilla, J. A.1
通讯作者Reyes-Valdes, M. H.
来源期刊PHYTON-INTERNATIONAL JOURNAL OF EXPERIMENTAL BOTANY
ISSN1851-5657
出版年2017
卷号86页码:171-180
英文摘要

The genus Dasylirion forms a group of well-represented perennial, dioecious species called "sotoles" in Mexico. This genus is a main component of the arid lands of northern Mexico and southern United States, and plays important ecological and economic roles. Four D. cedrosanum populations from northeastern Mexico were surveyed to gather statistics related to sex ratios and spatial distribution. The statistics were performed on an unbiased sample of 448 plants. Tests for sex ratio and spatial distribution were carried out. No evidence of departure from a 1:1 sex ratio proportion was found, both at the global level and within sampling sites. Patterns of spatial sex segregation were absent for all locations. One plant in the global sample could not be classified either as male or female, being anatomically andromonoecious. Both, the staminate and hermaphroditic flowers of this plant produced well-developed pollen. However, the hermaphroditic flowers were unable to produce fruits, even in the presence of pollen sources. The results are consistent with the expected for a well-established dioecious condition at the evolutionary scale, without environmental influences affecting the sex proportions and their spatial distribution.


英文关键词Arid land plants Dioecy Sex proportion Sex distribution Andromonoecy
类型Article
语种英语
国家Mexico ; Honduras
收录类别SCI-E
WOS记录号WOS:000418226500020
WOS关键词DIOECIOUS PLANTS ; CHROMOSOMES ; GYNODIOECY
WOS类目Plant Sciences
WOS研究方向Plant Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/201480
作者单位1.Univ Autonoma Agr Antonio Narro, Calzada Antonio Narro 1923, Saltillo 25315, Coahuila, Mexico;
2.Colegio Postgrad, Postgrad Recursos Genet & Prod, Campus Montecillo, Texcoco 56230, Estado De Mexic, Mexico;
3.Inst Hondureno Cafe IHCAFE, Costado Norte Edif IPM, Calle Atras Emisoras Uni 11101, Tegucigalpa, Honduras
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Reyes-Valdes, M. H.,Hernandez-Quintero, J. D.,Morales-Reyes, Y. A.,et al. Sex ratio and spatial distribution of pistillate and staminate plants of Dasylirion cedrosanum[J],2017,86:171-180.
APA Reyes-Valdes, M. H..,Hernandez-Quintero, J. D..,Morales-Reyes, Y. A..,Mendoza-Rodriguez, D. V..,Gonzalez-Uribe, D. U..,...&Villarreal-Quintanilla, J. A..(2017).Sex ratio and spatial distribution of pistillate and staminate plants of Dasylirion cedrosanum.PHYTON-INTERNATIONAL JOURNAL OF EXPERIMENTAL BOTANY,86,171-180.
MLA Reyes-Valdes, M. H.,et al."Sex ratio and spatial distribution of pistillate and staminate plants of Dasylirion cedrosanum".PHYTON-INTERNATIONAL JOURNAL OF EXPERIMENTAL BOTANY 86(2017):171-180.
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