Results 71 to 80 of about 32,806 (255)

Isoetes ×atruensis (Isoetaceae – Lycopodiopsida), a new interspecific sterile hybrid from Rajasthan of Western India

open access: yesNordic Journal of Botany, EarlyView.
Isoetes ×atruensis hyb. nov. is shown to be a triploid (2n = 3× = 33 + 1) sterile interspecific hybrid between diploid (2n = 2× = 22 + 1) I. coromandelina and tetraploid (2n = 4× = 44 + 1) I. rajasthanensis. It has been found in two locations in Rajasthan, India.
Sarvesh Kumar Singh   +4 more
wiley   +1 more source

A general statistical framework for dissecting parent-of-origin effects underlying endosperm traits in flowering plants

open access: yes, 2010
Genomic imprinting has been thought to play an important role in seed development in flowering plants. Seed in a flowering plant normally contains diploid embryo and triploid endosperm.
Cui, Yuehua, Li, Gengxin
core   +1 more source

Prenatal Screening Via cfDNA – Paired‐End Sequencing Utilizing Fragment Size Information Reduces the Screen Positive Rate for X Chromosome Aneuploidies

open access: yesPrenatal Diagnosis, EarlyView.
ABSTRACT Objective Prenatal cfDNA screening has transformed care, yet it remains difficult to determine whether X aneuploidy signals originate from the patient or fetus, inflating screen positive and false positive rates. One potential solution is to incorporate fragment size data from paired‐end sequencing (PES).
Susan Hancock   +4 more
wiley   +1 more source

The effect of radiation on the long term productivity of a plant based CELSS [PDF]

open access: yes
Mutations occur at a higher rate in space than under terrestrial conditions, primarily due to an increase in radiation levels. These mutations may effect the productivity of plants found in a controlled ecological life support system (CELSS).
Lake, B. H., Thompson, B. G.
core   +1 more source

Speciation with gene flow

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Biodiversity is threatened by human activities, with extinction debt accumulating rapidly. Many of these activities change the connectivity of populations, fragmenting existing population systems or bringing previously isolated populations or species into contact.
Zhiqin Long   +7 more
wiley   +1 more source

Effect of Ploidy in Photoreactivation.

open access: yesExperimental Biology and Medicine, 1952
SummaryThe survival fractions of diploid and haploid strains of S. cerevisiae after ultraviolet irradiation (2537 A.U.) have been obtained, compared, and modified by photoreactivation following the initial irradiation. The haploid survival follows a sigmoid curve and is smaller than the diploid at the same dose.
openaire   +2 more sources

Robust and highly informative microsatellite-based genetic identity kit for potato

open access: yesMolecular breeding, 2009
The fingerprinting of 742 potato landraces with 51 simple sequence repeat (SSR, or microsatellite) markers resulted in improving a previously constructed potato genetic identity kit.
M. Ghislain   +6 more
semanticscholar   +1 more source

A synthetic eco‐evolutionary proposal for the conservation of wild relatives of the olive tree

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Societal Impact Statement Crop wild relatives (CWR) are valuable sources of genetic diversity for plant breeding. However, the identification of wild untapped genetic resources (i.e., unexploited in crops) is not always straightforward. We propose a methodology to guide the identification and conservation of these resources that integrates both genetic
Andrés Barea‐Márquez   +6 more
wiley   +1 more source

Clinical significance of phenotyping and karyotyping of circulating tumor cells in patients with advanced gastric cancer

open access: yesOncoTarget, 2014
BACKGROUND Karyotyping and phenotyping of circulating tumor cells (CTCs) in therapeutic cancer patients is of particular clinical significance in terms of both identifying chemo-resistant CTC subtypes and understanding CTC evolution.
Yilin Li   +10 more
semanticscholar   +1 more source

Gene turnover in the common ancestor of all C4 grasses

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Understanding how plants evolve more efficient photosynthesis is important in a warming world where improving crop productivity and resilience is a global priority. By generating the first reference genomes for an early‐diverging group of grasses called the Aristidoideae, we were able to reconstruct the genetic makeup of the last common ancestor of all
Lara Pereira   +6 more
wiley   +1 more source

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