Results 11 to 20 of about 1,836 (191)

How environment and genetic architecture of unreduced gametes shape the establishment of autopolyploids. [PDF]

Heredity (Edinb)
AbstractIt is broadly assumed that polyploidy success is due to an increase in fitness associated with whole genome duplication due to higher tolerance to stressful conditions. In agreement, several theoretical models found that, among other factors, a better tolerance to new environmental conditions can promote polyploidy establishment.
Cheng Y, Kolář F, Schmickl R, Clo J.
europepmc   +2 more sources

Multiple hybrid zones involving four Cardamine species and their triploid progeny: watching allopolyploid speciation in action? [PDF]

New Phytol
Summary Hybrid zones provide excellent opportunities to study evolutionary processes linked to interspecific gene flow, including introgression, genetic erosion, polyploid establishment, and speciation. The genus Cardamine (Brassicaceae) serves as an excellent model for polyploid evolution, including one of the few well‐documented neo‐allopolyploid ...
Zozomová-Lihová J, Šlenker M, Šingliarová B, Pulišová K, Mandáková T, Marhold K.   +5 more
europepmc   +2 more sources

Repeated Independent Formation of Triploid Lineages Contributes to Clonal Diversity in Heteronotia binoei Parthenogens. [PDF]

Mol Ecol
ABSTRACT Parthenogenesis, or all‐female clonal reproduction, is rare among vertebrates. This is often attributed to the selective disadvantages of assumed reduction of genetic diversity in the absence of sex. However, parthenogenetic vertebrates have highly complex evolutionary histories, with most arising through hybridisation and many being polyploid.
O'Hara KE, Zozaya SM, Hahn EE, Holleley CE, Moritz C.   +4 more
europepmc   +2 more sources

A Review of Unreduced Gametes and Neopolyploids in Alfalfa: How to Fill the Gap between Well-Established Meiotic Mutants and Next-Generation Genomic Resources

Plants, 2021
The gene flow mediated by unreduced gametes between diploid and tetraploid plants of the Medicagosativa-coerulea-falcata complex is pivotal for alfalfa breeding.
Fabio Palumbo, Elisa Pasquali, Emidio Albertini, Gianni Barcaccia   +3 more
doaj   +1 more source

Visualizing and Inferring Chromosome Segregation in the Pedigree of an Improved Banana Cultivar (Gold Finger) with Genome Ancestry Mosaic Painting

Horticulturae, 2023
Banana breeding faces numerous challenges, such as sterility and low seed viability. Enhancing our understanding of banana genetics, notably through next-generation sequencing, can help mitigate these challenges.
Alberto Cenci, Guillaume Martin, Catherine Breton, Angélique D’Hont, Nabila Yahiaoui, Julie Sardos, Mathieu Rouard   +6 more
doaj   +1 more source

Unreduced gamete formation in plants: mechanisms and prospects [PDF]

Journal of Experimental Botany, 2010
ISSN:1460 ...
Brownfield, L, Kohler, C
openaire   +5 more sources

Induction of Synthetic Apomixis in Two Sorghum Hybrids Enables Seed Yield and Genotype Preservation Over Multiple Generations. [PDF]

Plant Biotechnol J
ABSTRACT Induction of apomixis, or clonal reproduction through seed, could economise commercial hybrid seed production and enable smallholder farmers to save and sow hybrid seed. Here, we demonstrate the synthetic induction of apomixis in two sorghum hybrids and show that the clonal hybrid seed can be maintained across multiple seed generations.
Simon MK, Yuan L, Che P, Day K, Jones T, Godwin ID, Koltunow AMG, Albertsen MC.   +7 more
europepmc   +2 more sources

Identification of Parental Genome Construction and Inherited Morphological Characteristics in Triploid and AneuploidIntergeneric Hybrids from a Diploid−Diploid Cross between Citrus and Fortunella

Agronomy, 2021
We previously obtained two intergeneric hybrids with different ploidies, i.e., aneuploid (2n = 28) and eutriploid, from diploid−diploid crosses between ‘Kiyomi’ tangor (Citrus unshiu Marcow. × C.
Kiichi Yasuda, Masaki Yahata, Mai Sato, Miki Sudo, Akiyoshi Tominaga, Hisato Kunitake   +5 more
doaj   +1 more source

Reproductive and genetic roles of the maternal progenitor in the origin of common wheat (Triticum aestivum L.)

Ecology and Evolution, 2020
Common wheat (Triticum aestivum L., AABBDD genome) is thought to have emerged through natural hybridization between Triticum turgidum L. (AABB genome) and Aegilops tauschii Coss. (DD genome).
Yoshihiro Matsuoka, Naoki Mori
doaj   +1 more source

Discovery and Characterization of Novel Fertile Triploids and a New Chromosome Number in Caladium (Caladium × hortulanum)

HortScience, 2022
Cultivated caladium (Caladium × hortulanum; 2n = 2x = 30) is an important ornamental aroid for the environmental horticulture industry. A better understanding of its genetic diversity is needed for continued improvement of caladium.
S. Brooks Parrish, Zhanao Deng
doaj   +1 more source