Cryptic dioecy
WebDec 30, 2009 · 30 December 2009 Cryptic Dioecy in Nyssa Yunnanensis (Nyssaceae), A Critically Endangered Species from Tropical Eastern Asia Bao-Ling Sun , Chang-Qin … WebMost commonly, cryptic dioecy occurs as a dimorphic population composed of plants with staminate flowers (male morphs) and plants with morphologically her- maphroditic flowers that produce both functional pistils and sterile stamens, which may be empty or filled with sterile pollen (female morphs; Mayer and Charlesworth 1991).
Cryptic dioecy
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WebJun 14, 2016 · Abstract. A new monomorphic species of Mussaenda from China is illustrated and described. The new species, Mussaenda campanulata, is similar to M. shikokiana, but differing by its smaller drying papery leaves, faint yellow, campanulate-funnelform corolla, and lack of calycophylls. Moreover, the pollen morphology of M. campanulata is also … WebAug 1, 2016 · Cryptic dioecy appears morphologically androdioecious, but the male organs in the hermaphrodite are sterile (Anderson and Symon, 1989, Cane, 1993 and references therein). However, functional androdioecy characterized by the coexistence of hermaphrodites that have both male and female function, and males (with higher male …
WebSeveral new cases of cryptic dioecy have recently been studied. They may give information about the minimal requirements for the evolution … In some dioecious plant … WebJul 19, 2010 · Cryptic dioecy is widely reported in flowering plants. However, in most instances it is not associated with transitions from heterostyly to dioecy ( Bawa, 1980 ; …
Web• Conclusions In M. pubescens , cryptic dioecy has evolved from stigma-height dimorphism as a result of morph-specific sterility mutations. Key words: Dioecy, distyly, female and … WebOct 1, 1999 · All eight species show cryptic dioecy. Five species show strict dioecy and three species show leaky dioecy due to the presence of male trees that set fruit. Species …
WebBackground and aims: Evolutionary transitions from heterostyly to dioecy have been proposed in several angiosperm families, particularly in Rubiaceae. These …
WebOct 31, 2024 · Cryptic dioecy (Mayer and Charlesworth 1991) characterized the population of G. brasiliensis in the Maricá restinga, due to the occurrence of male plants as well as plants with morphologically … fitzy\\u0027s old fashioned diner bethel rdWebApr 30, 2024 · In Apocynaceae, there exists a report of cryptic dioecy for Rauvolfia sellowii Müll. Arg. Some individuals have flowers with empty anthers (pistillate), and some have … can i make oat bran from oatmealWebEvolution of cryptic dioecy in Callicarpa(Verbenaceae) on the Bonin Islands By Nobumitsu Kawakubo Edited by Tod F. Stuessy, Universität Wien, Austria,Mikio Ono Book: … fitzy\\u0027s on churchWebOct 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 … fitzy\\u0027s old fashioned diner columbus oh 43229WebWe 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 ... fitzy\u0027s old fashioned diner columbus oh 43229WebKey words: androdioecy, cryptic dioecy, diallelic self-incompatibility system, naturalized populations, plant mating systems, transgeneric conservation of SI functionality. Summary A rare homomorphic diallelic self-incompatibility (DSI) system discovered in Phillyrea angustifolia (family Oleaceae, subtribe Oleinae) can promote the transition from fitzy\\u0027s old fashioned dinerWebApr 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 ... fitzy\\u0027s old fashion diner