Inbreeding depression in maize

Author: ckil

August undefined, 2024

WebJul 18, 2024 · Inbreeding depression, on the other hand, is the reduced survival and fertility of off-springs of related individuals due to inbreeding (Charlesworth and Wils 2009 ). It is caused by the unmasking of deleterious recessive alleles to their homozygous forms. Webmost families the inbreeding depression seemed to coincide with a curve calculated on the basis of the expected loss of heterozygosity in a diploid organism. ... The success of hybridization between inbred lines in maize has led to many similar investigations with other crops. Several workers have reported inbreeding studies in cultivated ...

Heterosis and Hybrid Crop Breeding: A Multidisciplinary Review

WebApr 11, 2024 · Introduction. Maize is the second most important cereal crop in the world due to its multi-purpose as food, feed, and fuel. In Thailand, the use of hybrid seeds has rapidly increased since the late 1990s (Napasintuwong, 2014), and most maize-growing areas are occupied with hybrid cultivars to date.The rising demands on maize hybrid seeds … WebInbreeding depression for seed set was small, suggesting seed set may not be the limiting factor in maintaining autotetraploid maize inbred lines that it is in other autotetraploid species. Inbreeding depression for yield corresponded to that expected based on the coefficient of inbreeding assuming the completely inbred generation has a mean of ... greenhouse gas protocol corporate accounting

Inbreeding depression in single, three way and double-cross

WebThe objective of this study was to evaluate the combining ability and inbreeding depression of commercial maize hybrids for agricultural traits. Twenty-two commercial maize hybrids, 96 F1 crosses ... WebPDF) Development of S1 inbred lines and estimation of inbreeding depression in two maize (Zea mays L.) populations CyberLeninka. Inbreeding and disease in tropical shrimp aquaculture: a reappraisal and caution – topic of research paper in Biological sciences. ... Evidence for inbreeding depression in a species with limited opportunity for ... WebJan 1, 2024 · Inbreeding Depression in Plants Onion, carrot, maize, sunflower, etc. are few examples of plants created by inbreeding depression either by the self-pollination or cross-pollination method. This development is discovered in many different plant species that are a unit any sorted supported the subsequent four classes. fly bathtub

Inbreeding – lessons from animal breeding, evolutionary biology …

WebDec 1, 2024 · Therefore, IMPH is a function of inbreeding depression, genetic divergence, and dominance whereas panmictic-midparent heterosis is a function only of genetic divergence and dominance (Lamkey and Edwards 1999). In maize, heterosis is exploited by creating single-cross hybrids from two genetically distinct heterotic pools. WebPopulations of N e = 20 that remained extant after 60 generations, showed inbreeding depression, with the mean fitness of these populations being only 45% of the outbredcontrols. ... Effects of inbreeding by selfing and full-sib mating in a maize population. Crop Sci., 14, 815-819. Google Scholar Crnokrak P, Roff DA (1999) Inbreeding depression ... flybath towel barWebRate of inbreeding depression for yield by selfing was b 1 = --46.53 q/ha and by full-sibbing, b L = --45.11 q/ha. At comparable levels of homozygosity, means of the lines developed by … flybat lifepo4 app

"WebNov 30, 2024 · All of the measured phenotypic characteristics exhibited inbreeding depression and the depression was observed at both ploidy levels examined. There was … " - Inbreeding depression in maize

Inbreeding depression in maize

Inbreeding Depression in Genotypically Matched Diploid and …

WebInbreeding depression is widespread across plant and animal kingdoms and may arise from the exposure of deleterious alleles and/or loss of overdominant alleles resulting from … http://xmpp.3m.com/inbreeding+research+paper

Did you know?

WebOct 3, 2024 · The present study aimed to obtain estimates of inbreeding depression for eight traits in seven tropical maize populations, analyze the effects of inbreeding over … WebInbreeding depression is usually studied in organisms that can self-fertilize, such as self-compatible plants or hermaphrodite animals, because here intense inbreeding has the strongest effects. Metrics - The genetics of inbreeding depression Nature Reviews Genetics

WebUnsourced material may be challenged and removed. Plant breeding in Nepal is the art and science of improving the heredity of plants for benefit of humanity in Nepal. The major crops of Nepal include rice, wheat, maize, oil seeds and grain legumes. WebInbreeding depression is widespread across plant and animal kingdoms and may arise from the exposure of deleterious alleles and/or loss of overdominant alleles resulting from …

WebJun 22, 2010 · Inbreeding depression is the reduced fitness of a population as a result of inbreeding, where the recessive alleles increase in frequency but are less favorable than the dominant alleles,... WebDec 8, 2024 · Flowering: Maize is cross pollinated crop. Blooming starts in the tassel near the tip of the central axil and it proceeds downward. It takes nearly 14 days to complete flowering. The pollen grains are viable for 24 hours. The pollen shedding begins 2 to 3 days before emergence of the skills. Female flower i.e. the cob.

WebInbreeding Depression in Plants Onion, carrot, maize, sunflower, etc. are a few examples of plants showing inbreeding depression. They reproduce either by the self-pollination or cross-pollination process.

WebApr 7, 2024 · Moderate Inbreeding Depression: Many crops species, such as maize, jowar, bajara etc. shows moderate inbreeding depression. Many lethal and sublethal types appear in the selfed progeny, but a substantial proportion of the population can be maintained under self- pollination. fly bat gliderWebThe objectives of this study were to learn and prove the truth and scientific miracles of The Quran, specifically the prohibition of incest for humans, also applies and affects … greenhouse gas protocol categoriesWebSep 1, 2024 · The coefficient of inbreeding depression measured as the absolute proportional change in population mean from a single generation of selfing was higher on average for environmental response traits within both subspecies, 21% (in teosinte) and 36% (in maize; (Figure 1; Figure S2; Table S3). fly battleWebInbreeding depression refers to the decrease or loss of fitness and strength which is mainly caused due to inbreeding. In simpler form, the mating between the relatives in a small population is common and this may lower … fly bateWebMar 9, 2007 · Inbreeding depression in maize by selfing and self-sibbing. ... Inbreeding depression for various traits in two cultured populations of the American bay scallop, Argopecten irradians irradians Lamarck (1819) introduced into China. Journal of Experimental Marine Biology and Ecology, Vol. 364, Issue. 1, p. 42. fly ba south africaWebRate of inbreeding depression for yield by selfing was b 1 = --46.53 q/ha and by full-sibbing, b L = --45.11 q/ha. At comparable levels of homozygosity, means of the lines developed by selfing and full-sibbing were not significantly different except for yield at 99% homozygosity. greenhouse gas protocol corporateWebAug 27, 2024 · Inbreeding depression is widespread across plant and animal kingdoms and may arise from the exposure of deleterious alleles and/or loss of overdominant alleles … fly bathroom