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Adaptive introgression
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Root is the prime organ that sucks water and nutrients from deep layer of soil. Wild barley diversity exhibits remarkable variation in root system architecture that seems crucial in its adaptation to abiotic stresses like drought. In the present study, we performed quantitative trait locus (QTL) mapping of root and related shoot traits under control and drought conditions using a population of wild barley introgression lines (ILs).
12p
vinarcissa
21-03-2023
4
1
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Hybridization and introgression are common phenomena among oak species. These processes can be beneficial by introducing favorable genetic variants across species (adaptive introgression).
12p
vihagrid
30-01-2023
4
3
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The extent to which selection determines interspecific patterns of genetic exchange enlightens the role of adaptation in evolution and speciation. Often reported extensive interspecific introgression could be selection-driven, but also result from demographic processes, especially in cases of invasive species replacements, which can promote introgression at their invasion front.
20p
vigalileogalilei
27-02-2022
15
1
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The 2’-5’ oligoadenylate synthetase (OAS) locus encodes for three OAS enzymes (OAS1-3) involved in innate immune response. This region harbors high amounts of Neandertal ancestry in non-African populations; Yet, strong evidence of positive selection in the OAS region is still lacking.
15p
vialfrednobel
29-01-2022
5
0
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Modern civilization depends on only a few plant species for its nourishment. These crops were derived via several thousands of years of human selection that transformed wild ancestors into high-yielding domesticated descendants.
17p
vialfrednobel
29-01-2022
15
0
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A group of animals that cannot interbreed with animals from another group is often taken as the definition of a ‘true’ species. However, a suite of recent studies suggests that the rare event of hybridization, that is, the production of viable offspring by the interbreeding of individuals from two such species, can facilitate adaptation through the process of genome ‘introgression’.
3p
viaristotle
29-01-2022
10
0
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Structural variation (SV) acts as an essential mutational force shaping the evolution and function of the human genome. However, few studies have examined the role of SVs in high-altitude adaptation and little is known of adaptive introgressed SVs in Tibetans so far.
21p
viarchimedes
26-01-2022
5
0
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Introgressive hybridization can reassort genetic variants into beneficial combinations, permitting adaptation to new ecological niches. To evaluate evolutionary patterns and dynamics that contribute to introgression, we investigate six wild Vitis species that are native to the Southwestern United States and useful for breeding grapevine (V. vinifera) rootstocks.
27p
viarchimedes
26-01-2022
9
0
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Gene flow between species, across ploidal levels, and even between evolutionary lineages is a common phenomenon in the genus Arabidopsis. However, apart from two genetically fully stabilized allotetraploid species that have been investigated in detail, the extent and temporal dynamics of hybridization are not well understood. An introgression zone, with tetraploid A. arenosa introgressing into A. lyrata subsp.
18p
vilarryellison
29-10-2021
9
1
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Modern Latin American populations were formed via genetic admixture among ancestral source populations from Africa, the Americas and Europe. We are interested in studying how combinations of genetic ancestry in admixed Latin American populations may impact genomic determinants of health and disease.
13p
viseulgi2711
31-08-2021
10
2
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A major issue in rice production is the control of Magnaporthe oryzae, the causal agent of rice blast. K 343 being a well adapted variety in the hill zone of Jammu and Kashmir region is susceptible to blast. Present study was undertaken to introgress the broad spectrum resistance gene Pi9 through marker assisted backcross breeding in order to avoid the losses due to this fungus.
13p
chauchaungayxua10
19-03-2021
19
2
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Research over the last 10 years highlights the increasing importance of hybridization between species as a major force structuring the evolution of genomes and potentially providing raw material for adaptation by natural and/or sexual selection.
11p
vijisoo2711
27-10-2020
13
1
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Drought is a major abiotic stress that causes a great reduction in the yield of the key cereal crops including sorghum. As the crops are sessile, they evolved several drought tolerance component traits to combat the water stress. Among the drought adaptive traits, root architecture plays a major role in efficient capillary water absorption even under severe water scarce situations through early development and deep penetration of roots. Thus, introgression of root traits in the elite breeding lines would enhance the breeding efficiency for water-limited environments.
7p
kethamoi7
26-08-2020
13
2
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Although Vietnam is the second largest rice exporter in the world, the country has only recently met the demand for sustainable food supply at a national level, and not yet at a household one. In the early 1970s, the average rice yield in the Mekong River Delta (MRD) was 1.9 tons/ ha and the annual production weighed 4 million tons. The current rice productivity and production has gained over 6 tons/ha and 24 million tons/year, respectively. This is a substantial increase.
4p
caygaocaolon1
13-11-2019
42
0
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Three target points in acid sulfate soils have been identified as: 1) Aluminum (Al) toxicity; 2) Iron (Fe) toxicity; 3) Phosphorous (P) deficiency; and 4) Droughts at the seedling stage. The exploitation of gene pools from wild rice species fruitfully obtained a true introgression of desirable traits into high yielding varieties (HYVs), such as AS996 (IR64/Oryza rufipogon), which are tolerant to Al-toxicity, have short durations, high yields, and adaptability to acid sulfate soils.
6p
caygaocaolon1
13-11-2019
41
0
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Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học Journal of Biology đề tài: Adaptation by introgression...
3p
toshiba4
07-09-2011
45
1
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