Selective sweep

The NAM-B1 gene in wheat has for almost three decades been extensively studied and utilized in breeding programs because of its significant impact on grain protein and mineral content and pleiotropic effects on senescence rate and grain size.

10p vinarcissa 21-03-2023 3 1   Download

Genetic variations of the TCF7L2 gene are associated with the development of Type 2 diabetes (T2D). The associated mutations have demonstrated an adaptive role in some human populations, but no studies have determined the impact of evolutionary forces on genetic diversity in indigenous populations from Mexico.

15p vinarcissa 21-03-2023 1 1   Download

The domestic turkey (Meleagris gallopavo) is an important agricultural species that is largely used as a meat-type bird. Characterizing genetic variation in populations of domesticated species and associating these variation patterns with the evolution, domestication, and selective breeding is critical for understanding the dynamics of genomic change in these species.

10p vinarcissa 21-03-2023 1 1   Download

Discerning the traits evolving under neutral conditions from those traits evolving rapidly because of various selection pressures is a great challenge. We propose a new method, composite selection signals (CSS), which unifies the multiple pieces of selection evidence from the rank distribution of its diverse constituent tests.

19p vinarcissa 21-03-2023 2 1   Download

In the process of adaptation of humans to their environment, positive or adaptive selection has played a main role. Positive selection has, however, been under-studied in African populations, despite their diversity and importance for understanding human history.

17p vihagrid 30-01-2023 8 3   Download

Evidence of introgression, the transfer of genetic material, between crops and their wild relatives through spontaneous hybridization and subsequent backcrossing has been documented; however, the evolutionary patterns and consequences of introgression and its influence on the processes of crop domestication and varietal diversification are poorly understood.

15p vigalileogalilei 27-02-2022 13 1   Download

We present a new method, Fine-Mapping of Adaptive Variation (FineMAV), which combines population differentiation, derived allele frequency, and molecular functionality to prioritize positively selected candidate variants for functional follow-up. We calibrate and test FineMAV using eight experimentally validated “gold standard” positively selected variants and simulations.

18p vialfrednobel 29-01-2022 8 0   Download

The papaya Y-linked region showed clear population structure, resulting in the detection of the ancestral male population that domesticated hermaphrodite papayas were selected from. The same populations were used to study nucleotide diversity and population structure in the X-linked region.

11p vialfrednobel 29-01-2022 11 0   Download

One of the approaches to detect genetics variants affecting fitness traits is to identify their surrounding genomic signatures of past selection. With established methods for detecting selection signatures and the current and future availability of large datasets, such studies should have the power to not only detect these signatures but also to infer their selective histories. Domesticated animals offer a powerful model for these approaches as they adapted rapidly to environmental and human-mediated constraints in a relatively short time.

17p vibeauty 23-10-2021 11 1   Download

Domesticated chickens have a wide variety of phenotypes, in contrast with their wild progenitors. Unlike other chicken breeds, Xichuan black-bone chickens have blue-shelled eggs, and black meat, beaks, skin, bones, and legs.

15p vijeeni2711 24-07-2021 14 1   Download

Understanding the genetic basis of phenotype variations during domestication and breeding is of great interest. Epigenetics and epigenetic modification enzymes (EMEs) may play a role in phenotypic variations; however, no comprehensive study has been performed to date.

11p vijeeni2711 30-06-2021 7 1   Download

Barley is one of the founder crops of Neolithic agriculture and is among the most-grown cereals today. The only trait that universally differentiates the cultivated and wild subspecies is ‘non-brittleness’ of the rachis (the stem of the inflorescence), which facilitates harvesting of the crop.

17p vilichoo2711 23-06-2021 5 1   Download

Ecological environments shape plant architecture and alter the growing season, which provides the basis for wheat genetic improvement. Therefore, understanding the genetic basis of grain yield and yield-related traits in specific ecological environments is important.

14p vijichea2711 28-05-2021 10 1   Download

The effect of operational parameters on selected tillage tools or tines were studied by using instrumented soilbin at Department of Farm Machinery and Power Engineering, College of Agricultural Engineering, Raichur (Karnataka). The experiment was conducted in sandy clay loam soil to study the effect of variation of forward speed (3, 4 and 5 km/h), operating depth (5, 10 and 15 cm) and type of tools (Sweep-1, Sweep-2 and Shovel-1) on draft, specific draft, soil disturbance parameters and tool width to furrow width ratio. The test was conducted in a 21 m long, 2 m wide and 1 m deep soilbin.

11p trinhthamhodang1215 23-09-2020 8 0   Download

6. Sử dụng lệnh Sweep1 để tạo mặt thứ hai 7. Tại dòng nhắc Select Rail, chọn cạnh trên của bề mặt mà bạn vừa mới tạo ra, sau đó chọn đường tiết diện theo yêu cầu, và gõ enter 8. Tại hộp thoại Sweep 1 Rail Option, thay đổi mục Style thành Align with Surface, và gõ Enter. Điều này sẽ chắc chắn rằng liên tục tiếp tuyến với bề mặt đầu tiên.

11p xingau6 15-08-2011 668 303   Download