Genomic signatures of past megafrugivore‐mediated dispersal in Malagasy palms
Journal of Ecology, Volume 112, Issue 7, Page 1583-1598, July 2024.Our results suggest that the legacy of megafrugivores regularly achieving long dispersal distances is still reflected in the population genetics of palms that were formerly dispersed by such animals. Furthermore, low genetic differentiation was possibly maintained after the megafauna extinctions through alternative dispersal (e.g.
Laura Méndez +7 more
wiley +1 more source
Sex chromosomes in willows [PDF]
, 2016 Sexual reproduction is found in most eukaryotes and has in the majority of animal species led to the evolution of separate sexes. In contrast, only 5-6% of all angiospersms are dioecious with female and male flowers on separate individuals. Interestingly,
Pucholt, Pascal
core
Establishing Research and Management Priorities for Monoecious Hydrilla [PDF]
, 2014 Abstract : a) A synthesis of key points from presentations and discussions following a September 2012 Symposium on the Biology and Management of Monoecious Hydrilla, b) Background information on monoecious hydrilla and a description of why the spread of this biotype into the northern tier states should concern policymakers and resource managers, and c)
Mike Greer, M. D. Netherland
openaire +1 more source
Madagasikaria (Malpighiaceae): A New Genus from Madagascar with Implications for Floral Evolution in Malpighiaceae [PDF]
, 2002 Madagasikaria andersonii is described here as a new genus and species of Malpighiaceae from Madagascar. The phylogenetic placement of Madagasikaria was estimated by using combined data from ndhF and trnL-F chloroplast sequences and phytochrome (PHYC) and
Davis, Charles
core +1 more source
Characterization of a large sex determination region in Salix purpurea L. (Salicaceae). [PDF]
, 2018 Dioecy has evolved numerous times in plants, but heteromorphic sex chromosomes are apparently rare. Sex determination has been studied in multiple Salix and Populus (Salicaceae) species, and P. trichocarpa has an XY sex determination system on chromosome
Carlson, Craig H +11 more
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Floral structure and development in the monoecious palm Gaussia attenuata (Arecaceae; Arecoideae) [PDF]
, 2017 Background and Aims Sexual dimorphism, at both the flower and plant level, is widespread in the palm family (Arecaceae), in contrast to the situation in angiosperms as a whole.
Castaño, Felipe +6 more
core
Temporal windows of reproductive opportunity reinforce species barriers in a marine broadcast spawning assemblage [PDF]
, 2016 Prezygotic isolating mechanisms act to limit hybridization and maintain the genetic identity of closely-related species. While synchronous intraspecific spawning is a common phenomenon amongst marine organisms and plays an important role in reproductive ...
Jacinto, Rita +4 more
core +1 more source
Analysis of the Maize dicer-like1 Mutant, fuzzy tassel, Implicates MicroRNAs in Anther Maturation and Dehiscence [PDF]
, 2016 Sexual reproduction in plants requires development of haploid gametophytes from somatic tissues. Pollen is the male gametophyte and develops within the stamen; defects in the somatic tissues of the stamen and in the male gametophyte itself can result in ...
A Nag +63 more
core +3 more sources
THE MONOECIOUS AND DIOECIOUS CONDITIONS IN SAGITTARIA LATIFOLIA L. (ALISMATACEAE) [PDF]
Evolution, 1971 Field botanists recognize that many populations of plants, largely sexually monoclinic, may contain some individuals with diclinous flowers and that some generally monoecious species may include dioecious individuals in contradiction to descriptions in the taxonomic literature. These deviates, if they comprise a small proportion of the total population,
openaire +2 more sources
Pollen: ovule ratio and its relationship with other reproductive traits in some Passiflora species (Passifloraceae) [PDF]
, 2014 The pollen/ovule (P/O) ratio has been used as predictor of the reproductive system of angiosperms (lowest P/O values correspond to obligate autogamous species while the highest correlate with obligate xenogamous species) but it does not keep for all the ...
Amela Garcia, Maria Teresa +2 more
core +1 more source