Cryptic dioecy

Author: ywqt

August undefined, 2024

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 … WebSep 1, 1999 · There is evidence from other island groups that cryptic dioecy may be a common feature of dioecy on oceanic islands (e.g. Humeau et al., 1999) and thus worth comparative study, particularly in...

Cryptic Definition & Meaning - Merriam-Webster

WebHow to use cryptic in a sentence. The Mysterious Origins of Cryptic Synonym Discussion of Cryptic. secret, occult; having or seeming to have a hidden or ambiguous meaning : … 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 … michail chasin

Cryptic dioecy in Actinidia polygama: a test of the pollinator ...

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... 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 ... 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 … the net rap by peterson brothers

Cryptic dioecy and leaky dioecy in endemic species of

沙颍河流域水循环影响要素演变特征分析-韩宇平岳影穆文彬-中文 …

WebApr 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 … WebLes fleurs femelles de certaines espèces dioïques développent des étamines avec du pollen stérile, un système sexuel connu comme dioïsme cryptique. Le fait que les étamines des fleurs femelles attirent les pollinisateurs pour assurer la production de graines, serait une hypothèse convaincante pour expliquer ce phénomène. michail brookWebKey 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 michail chaize muse wibsite tamplete download

"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 … " - Cryptic dioecy

Cryptic dioecy

WebBackground and aims: Evolutionary transitions from heterostyly to dioecy have been proposed in several angiosperm families, particularly in Rubiaceae. These … WebJul 29, 2024 · Androdioecy is a rare reproductive system. Fraxinus platypoda, a woody canopy species in Japan’s mountainous riparian zones, is described as a morphologically androdioecious species. In this study, we tried to detect whether F. platypoda is also functionally androdioecious.

Did you know?

WebJan 7, 2024 · Cryptic dioecy: Flowers appear morphologically bisexual; however, only one of the two sexes is functional . Dichogamy: Temporal difference in sexual organs maturation, thus promoting cross-pollination rather than self-pollination. Differences in the timing of pollen dispersal from anthers and stigma receptivity of flowers. 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 …

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; Haber and Bawa, 1984; Kevan and Lack, 1985; Kawakubo, 1990; Mayer and Charlesworth, 1991; Kato and Nagamasu, 1995; Renner and Ricklefs, 1995; Aranha et al., 2009). 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 …

WebFeb 2, 2011 · Given the evident role of stamens in female flowers in A. polygama reproduction, we discuss why cryptic dioecy is a rare phenomenon.Key words: … Webcryptic meaning: 1. mysterious and difficult to understand: 2. mysterious and difficult to understand: 3…. Learn more.

WebMar 4, 2015 · The higher occurrence of dioecy in young successional areas is likely due to a higher relative seed fitness of dioecious species in more stressful conditions or by an evolutionary-driven association between dioecy and colonization ability, as predicted by theoretical studies. Synthesis.

WebNov 26, 2008 · Abstract. Pollen morphology of ten Brazilian species within the South American clade (ca. 20 species) of Symplocos section Barberina (Symplocaceae) was … michail fjodorowitsch romanowWebCryptic Dioecy in Nyssa Yunnanensis (Nyssaceae), A Critically Endangered Species from Tropical Eastern Asia1. Annals of the Missouri Botanical Garden, 96(4), 672–684. doi:10.3417/2008015 . the net reactionWebEvolution of cryptic dioecy in Callicarpa(Verbenaceae) on the Bonin Islands By Nobumitsu Kawakubo Edited by Tod F. Stuessy, Universität Wien, Austria,Mikio Ono Book: … the net reproductive rate refers toWebJan 7, 2024 · The development of unisexual flowers has been described in a large number of taxa, sampling the diversity of floral phenotypes and sexual systems observed in extant angiosperms, in studies focusing on floral ontogeny, on the evo-devo of unisexuality, or on the genetic and chromosomal bases of unisexuality. We review here such developmental ... the net reaction of aerobic respiration isWebOct 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. michail fokinWebWe 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 ... the net reclassification index nriWebMost 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). michail giannitsopoulos