Results 1 to 10 of about 3,709 (253)

Selection on the gametophyte: Modeling alternation of generations in plants [PDF]

open access: yesApplications in Plant Sciences, 2022
Premise The degree of gametophyte dependence on the sporophyte life stage is a major feature that differentiates the life cycles of land plants, yet the evolutionary consequences of this difference remain poorly understood.
Deren Eaton   +2 more
exaly   +3 more sources

Epigenetic reprogramming rewires transcription during the alternation of generations in Arabidopsis [PDF]

open access: yeseLife, 2021
Alternation between morphologically distinct haploid and diploid life forms is a defining feature of most plant and algal life cycles, yet the underlying molecular mechanisms that govern these transitions remain unclear.
Michael Borg   +6 more
doaj   +2 more sources

Multiple developmental pathways in organisms with developmentally complex life cycles [PDF]

open access: yesFrontiers in Cell and Developmental Biology
One aspect under which an organism’s life cycle can be considered complex is when the very same organism can undertake, or obligatorily undertakes, multiple developmental pathways. Examples are organisms with alternation of generations, like most plants,
Giuseppe Fusco, Alessandro Minelli
doaj   +2 more sources

Taxonomic identification and life cycle comparison of two populations of the monostromatic green algae Monostroma nitidum [PDF]

open access: yesEcology and Evolution
Monostroma nitidum, a monostromatic green algae (MGA) with high economic value, is distributed worldwide. Life cycle often serves as a fundamental criterion for taxonomic classification. Most researchers consider the life cycle of M.
Jiawei Liao   +7 more
doaj   +2 more sources

Generics and Alternatives [PDF]

open access: yesFrontiers in Psychology, 2020
In this paper we argue that for the (probabilistic) interpretation of generic sentences of the form "Gs are f," three types of alternatives play a role: (i) alternative features of f, (ii) alternative groups, or kinds, of G, and (iii) alternative causal background factors. In the first part of this paper we argue for the relevance of these alternatives.
Kochari, A., Van Rooij, R., Schulz, K.
openaire   +6 more sources

The origin of alternation of generations in land plants: a focus on matrotrophy and hexose transport [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2000
Lee W Wilcox
exaly   +2 more sources

Gamete expression of TALE class HD genes activates the diploid sporophyte program in Marchantia polymorpha

open access: yeseLife, 2021
Eukaryotic life cycles alternate between haploid and diploid phases and in phylogenetically diverse unicellular eukaryotes, expression of paralogous homeodomain genes in gametes primes the haploid-to-diploid transition.
Tom Dierschke   +5 more
doaj   +1 more source

Molecular Control of Sporophyte-Gametophyte Ontogeny and Transition in Plants

open access: yesFrontiers in Plant Science, 2022
Alternation of generations between a sporophytic and gametophytic developmental stage is a feature common to all land plants. This review will discuss the evolutionary origins of these two developmental programs from unicellular eukaryotic progenitors ...
Saurabh Pandey   +8 more
doaj   +1 more source

Socio-Demographic Measuring Of Relation Of Life Quality And Level Of Population Reproduction In Russia And Foreign Countries On Basis Of Rating Evaluations [PDF]

open access: yesЭкономика региона, 2014
During the finishing of the second demographic transition in the countries with relatively high level of socio-economic development, the tendencies of rise in the total birthrate and the changing of a calendar of births were revealed. At the same time,
Aleksandr Ivanovich Kuzmin   +2 more
doaj   +1 more source

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