Combatting ageism in the Western Pacific region

Ayalon, Liat; Roy, Senjooti

doi:10.1016/j.lanwpc.2022.100593

Cited by 6 publications

(2 citation statements)

References 52 publications

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“…These significant chromosomal regions should be prioritized for future research. Similar regions and chromosomes associated with GNS have been identified in previous studies [ 66 – 68 ]. Although various studies have explored yield-related traits in wheat, limited research has specifically investigated GNS [ 69 – 71 ].…”

Section: Discussionsupporting

confidence: 82%

Genetic insights into superior grain number traits: a QTL analysis of wheat-Agropyron cristatum derivative pubing3228

Wang,

Cheng

et al. 2024

BMC Plant Biol

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Background Agropyron cristatum (L.) is a valuable genetic resource for expanding the genetic diversity of common wheat. Pubing3228, a novel wheat-A. cristatum hybrid germplasm, exhibits several desirable agricultural traits, including high grain number per spike (GNS). Understanding the genetic architecture of GNS in Pubing3228 is crucial for enhancing wheat yield. This study aims to analyze the specific genetic regions and alleles associated with high GNS in Pubing3228. Methods The study employed a recombination inbred line (RIL) population derived from a cross between Pubing3228 and Jing4839 to investigate the genetic regions and alleles linked to high GNS. Quantitative Trait Loci (QTL) analysis and candidate gene investigation were utilized to explore these traits. Results A total of 40 QTLs associated with GNS were identified across 16 chromosomes, accounting for 4.25–17.17% of the total phenotypic variation. Five QTLs (QGns.wa-1D, QGns.wa-5 A, QGns.wa-7Da.1, QGns.wa-7Da.2 and QGns.wa-7Da.3) accounter for over 10% of the phenotypic variation in at least two environments. Furthermore, 94.67% of the GNS QTL with positive effects originated from Pubing3228. Candidate gene analysis of stable QTLs identified 11 candidate genes for GNS, including a senescence-associated protein gene (TraesCS7D01G148000) linked to the most significant SNP (AX-108,748,734) on chromosome 7D, potentially involved in reallocating nutrients from senescing tissues to developing seeds. Conclusion This study provides new insights into the genetic mechanisms underlying high GNS in Pubing3228, offering valuable resources for marker-assisted selection in wheat breeding to enhance yield.

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Section: Discussionsupporting

confidence: 82%

Genetic insights into superior grain number traits: a QTL analysis of wheat-Agropyron cristatum derivative pubing3228

Wang,

Cheng

et al. 2024

BMC Plant Biol

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“…However, it is important to note that our sample was representative only of the U.S. population. Clearly, there are notable variations in the manifestations of age discrimination across countries and regions ( Ayalon & Roy, 2022 ). Hence, it is possible that APC effects manifest differently in different countries and cultural contexts.…”

Section: Discussionmentioning

confidence: 99%

Perceived Age Discrimination in the Second Half of Life: An Examination of Age, Period, and Cohort Effects

Ayalon,

Bramajo

2023

Innovation in Aging

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Background and Objectives Ageism is defined as stereotypes, prejudice, and discrimination based on age. Perceived age discrimination (e.g., the behavioral component of ageism) is highly prevalent in society, reported by one in three people in Europe. The present study examined variations in perceived age discrimination in the second half of life. We adopt a comprehensive approach which examines whether perceived age discrimination varies by age (chronological time from birth), period (the context when data were collected), or cohort (a group of people with shared life events experienced at a similar age) across gender and ethnic origin. Research Design and Methods We relied on psychosocial data from the Health and Retirement Survey between 2006 and 2018. We ran a set of age-period-cohort (APC) models to determine the separate effects of aging (age) factors, contextual (period) factors and generational (cohort) factors on perceived age discrimination. Results Our findings show that perceived age discrimination increases with age but reaches a plateau around the age of 75. There also were some cohort effects, but they appeared minimal and inconsistent. No period effects were found. Discussion and Implications The findings attest to the consistent nature of perceived age discrimination, which is less likely to be impacted by external contextual events. It also is less likely to be affected by gender or ethnicity. The findings also suggest that it is older persons who are more likely to report age discrimination, thus, interventions should address ageism in this age group.

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Ageism: The Need for New Imagery for Growing Old

Paoletti

2024

Creating New Meanings for Old Age

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Combatting ageism in the Western Pacific region

Cited by 6 publications

References 52 publications

Genetic insights into superior grain number traits: a QTL analysis of wheat-Agropyron cristatum derivative pubing3228

Genetic insights into superior grain number traits: a QTL analysis of wheat-Agropyron cristatum derivative pubing3228

Perceived Age Discrimination in the Second Half of Life: An Examination of Age, Period, and Cohort Effects

Ageism: The Need for New Imagery for Growing Old

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