Results 61 to 70 of about 81,508 (349)
Combined detection and introgression of QTL in outbred populations
Background Detecting a QTL is only the first step in genetic improvement programs. When a QTL with desirable characteristics is found, e.g. in a wild or unimproved population, it may be interesting to introgress the detected QTL into the commercial ...
Meuwissen Theodorus HE+3 more
doaj +1 more source
Plant architecture, flowering time and maturity traits are important determinants of yield and fiber quality of cotton. Genetic dissection of loci determining these yield and quality components is complicated by numerous loci with alleles conferring ...
Rahul Chandnani+12 more
doaj +1 more source
Worldwide Patterns of Ancestry, Divergence, and Admixture in Domesticated Cattle [PDF]
The domestication and development of cattle has considerably impacted human societies, but the histories of cattle breeds have been poorly understood especially for African, Asian, and American breeds. Using genotypes from 43,043 autosomal single nucleotide polymorphism markers scored in 1,543 animals, we evaluate the population structure of 134 ...
arxiv +1 more source
Relationship of phenotypic variation and genetic admixture in the Saltmarsh–Nelson\u27s sparrow hybrid zone [PDF]
Hybridization is influential in shaping species\u27 dynamics and has many evolutionary and conservation implications. Identification of hybrid individuals typically relies on morphological data, but the assumption that hybrids express intermediate traits
Kovach, Adrienne I.+4 more
core +2 more sources
Researchers develop advanced tools to study grapevine traits like berry quality and stress resilience. A 200K SNP array and high‐throughput phenotyping enable the identification of loci linked to berry shape, sugar content, acidity, and cold tolerance. Functional validation of genes such as NAC08 reveals roles in cold tolerance.
Yuyu Zhang+11 more
wiley +1 more source
Structural Variations Associated with Adaptation and Coat Color in Qinghai‐Tibetan Plateau Cattle
This study reveals the landscape of structural variants in Qinghai‐Tibetan Plateau cattle through long‐read sequencing. Discoveries include metabolic and oxygen‐regulation gene variants, along with a 2‐Mb KIT‐containing inversion and translocations responsible for cattle gray coat. These findings highlight the significant role of structural variants in
Xiaoting Xia+39 more
wiley +1 more source
Bracketing phenogenotypic limits of mammalian hybridization [PDF]
An increasing number of mammalian species have been shown to have a history of hybridization and introgression based on genetic analyses. Only relatively few fossils, however, preserve genetic material, and morphology must be used to identify the species
Yoland Savriama+14 more
doaj +1 more source
Introgression shapes fruit color convergence in invasive Galápagos tomato
Invasive species represent one of the foremost risks to global biodiversity. Here, we use population genomics to evaluate the history and consequences of an invasion of wild tomato—Solanum pimpinellifolium—onto the Galápagos Islands from continental ...
Matthew JS Gibson+3 more
doaj +1 more source
A new method to scan genomes for introgression in a secondary contact model [PDF]
Secondary contact between divergent populations or incipient species may result in the exchange and introgression of genomic material. We develop a simple DNA sequence measure, called Gmin, which is designed to identify genomic regions experiencing introgression in a secondary contact model.
arxiv +1 more source
Interfertile oaks in an island environment. II. Limited hybridization between Quercus alnifolia Poech and Q. coccifera L. in a mixed stand [PDF]
Hybridization and introgression between Quercus alnifolia Poech and Q. coccifera L. is studied by analyzing morphological traits, nuclear and chloroplast DNA markers. The study site is a mixed stand on Troodos Mountains (Cyprus) and the analyzed material includes both adult trees and progenies of specific mother trees.
arxiv +1 more source