WebNov 1, 1999 · In this study, we quantified the presence and distribution of leaky dioecy in a group of congeneric endemic species of the genus Dombeya (Sterculiaceae) on La Réunion island (Indian Ocean). All... WebThese cryptically dioecious systems have the potential to provide significant insights into the selective factors and constraints involved in the evolution to and from dioecy. Thalictrum macrostylum is a morphologically androdioecious species in which the apparently hermaphroditic morph is functionally female. Methodology .
Cryptic dioecy in Mussaenda pubescens (Rubiaceae): a species with
WebOct 1, 1999 · In this study, we quantified the presence and distribution of leaky dioecy in a group of congeneric endemic species of the genus Dombeya (Sterculiaceae) on La … WebOct 7, 2004 · Aranha Filho J, Fritsch P, Almeda F and Martins A (2008) Cryptic dioecy is widespread in South American species of Symplocos section Barberina (Symplocaceae), Plant Systematics and Evolution, 10.1007/s00606-008-0109-9, 277:1-2, (99-104), Online publication date: 1-Jan-2009. ip syllabus class 12 cbse 2022
Sterile stamens do not enhance seed set in females of the
WebApr 1, 2024 · Proto-X and proto-Y = nascent sex chromosomes. (b) An alternative model involves nucleo-cytoplasmic mutations, with gynodioecy being determined by a cytoplasmic-male-sterility factor (CMS) and a nuclear restorer of male fertility gene (Rf) system, in which case dioecy is determined by cryptic CMS, fixed in the population. If the Rf gene and a ... WebCRYPTIC DIOECY IN NYSSA YUNNANENSIS (NYSSACEAE), A CRITICALLY ENDANGERED SPECIES FROM TROPICAL EASTERN ASIA1 Bao-Ling Sun,2,3 Chang-Qin Zhang,2 Porter P. Lowry II,4,5 and Jun Wen6 ABSTRACT Nyssa yunnanensis W. Q. Yin ex H. N. Qin & Phengklai (Nyssaceae) is a critically endangered range-restricted tree … WebWe show that dioecy is associated with increased genetic diversity and a higher selection efficacy both against deleterious and for beneficial mutations while controlling for differences in population size. ... and in the Carpathians. Several contact zones were identified. Silene nutans consists of a cryptic assemblage of genetically distinct ... orang pendek plaster cast footprints