scholarly journals How to make a domesticate

Author(s):  
Markus G Stetter ◽  
Daniel J Gates ◽  
Wenbin Mei ◽  
Jeffrey Ross-Ibarra

Crop domestication is an adaptive process that transforms a wild plant into a domesticated species that can reared and maintained for human use. Though there are hundreds of thousands of flowering plant species, only a small fraction has ever been domesticated. Successful domestication is likely influenced by a number of key plant characteristics, including its life history, the usefulness of a crop for early societies, and the maintenance of a large effective population size. Although many studies have sought to identify individual loci with large effects on domestication traits, we argue that relevant phenotypes are likely controlled by a large number of loci, most of relatively small effect. Most of these alleles were probably selected from standing genetic variation present in the wild ancestor rather than new mutations. Both archaeological evidence and quantitative genetics suggest that the process of domestication was in most cases gradual, likely lasting several millennia. We end by discussing how these findings from the past may inform future efforts to domesticate new species.

2017 ◽  
Author(s):  
Markus G Stetter ◽  
Daniel J Gates ◽  
Wenbin Mei ◽  
Jeffrey Ross-Ibarra

Crop domestication is an adaptive process that transforms a wild plant into a domesticated species that can reared and maintained for human use. Though there are hundreds of thousands of flowering plant species, only a small fraction has ever been domesticated. Successful domestication is likely influenced by a number of key plant characteristics, including its life history, the usefulness of a crop for early societies, and the maintenance of a large effective population size. Although many studies have sought to identify individual loci with large effects on domestication traits, we argue that relevant phenotypes are likely controlled by a large number of loci, most of relatively small effect. Most of these alleles were probably selected from standing genetic variation present in the wild ancestor rather than new mutations. Both archaeological evidence and quantitative genetics suggest that the process of domestication was in most cases gradual, likely lasting several millennia. We end by discussing how these findings from the past may inform future efforts to domesticate new species.


2022 ◽  
Author(s):  
Lianah Kuswanto ◽  
Noor Amalia Chusna ◽  
Eko Purnomo ◽  
Krisantini ◽  
Milya Urfa Ahmad

Indonesia has diverse flora and fauna, and many species remain largely undiscovered. Documentation and identification of threatened wild ornamental species are increasingly difficult due to ongoing exploitation and land conversion. Mount Prau is one of the popular destinations in Central Java, Indonesia for tourism. Understanding plant biodiversity has enormous value for the economy, ecology, culture, science, and recreation. Our study is aimed to record the diversity and identify the flowering plant species in their native habitat at Mount Prau, Central Java, Indonesia. Our field surveys demonstrated that Mount Prau has abundant wild ornamental plants with wide diversity of taxa, growth habits, and forms. A total of 103 species representing 51 families and 95 genera are identified including trees, shrubs, herbs, and lianas. We also found that among the plant species found in Mount Prau, 24 have morphological characters suitable to be cultivated as ornamental flowers, and 12 as ornamental foliages, and 63 species are medicinal plants. The ornamental criteria of these species were based on the literature describing the morphological and unique characters of leaves and flowers that made them potential to be developed as ornamental plants. In this paper we have provided the current conservation status of the plant species identified and recommendations on their conservation. This study provides baseline data of species found in the Mount Prau areas, and this information could be helpful for further conservations efforts and initiatives.


2022 ◽  
Vol 28 (1) ◽  
pp. 110-119
Author(s):  
Lianah Kuswanto ◽  
Noor Amalia Chusna ◽  
Eko Purnomo ◽  
Krisantini ◽  
Milya Urfa Ahmad

Abstract Indonesia has diverse flora and fauna, and many species remain largely undiscovered. Documentation and identification of threatened wild ornamental species are increasingly difficult due to ongoing exploitation and land conversion. Mount Prau is one of the popular destinations in Central Java, Indonesia for tourism. Understanding plant biodiversity has enormous value for the economy, ecology, culture, science, and recreation. Our study is aimed to record the diversity and identify the flowering plant species in their native habitat at Mount Prau, Central Java, Indonesia. Our field surveys demonstrated that Mount Prau has abundant wild ornamental plants with wide diversity of taxa, growth habits, and forms. A total of 103 species representing 51 families and 95 genera are identified including trees, shrubs, herbs, and lianas. We also found that among the plant species found in Mount Prau, 24 have morphological characters suitable to be cultivated as ornamental flowers, and 12 as ornamental foliages, and 63 species are medicinal plants. The ornamental criteria of these species were based on the literature describing the morphological and unique characters of leaves and flowers that made them potential to be developed as ornamental plants. In this paper we have provided the current conservation status of the plant species identified and recommendations on their conservation. This study provides baseline data of species found in the Mount Prau areas, and this information could be helpful for further conservations efforts and initiatives.


2013 ◽  
Vol 21 (1) ◽  
pp. 41-47
Author(s):  
BK Basnet

Rara National Park is the smallest national park of the country. It is rich in floral and faunal diversity. Rara is one of the sacred lakes and is listed as a Ramsar site. The aim of the study was to compile the representative flora of Rara lake and to present status of available vegetation. The research used both primary and secondary sources of data. Field visit was conducted in June, 2010 during which more than 300 plant specimens were collected. The secondary data were collected from Rara and adjoining area like Gamgadi. These data were thoroughly analyzed to understand the composition of vegetation. The study revealed the existence of about 224 flowering plant species in the area, under 173 genera and 67 families. Compositae was found to be the largest family (21 species and 17 genera) followed by Rosaceae (19 species and 10 genera). DOI: http://dx.doi.org/10.3126/banko.v21i1.9063 Banko Janakari, Vol. 21, No. 1 2011; 41-47


Genetics ◽  
1994 ◽  
Vol 136 (1) ◽  
pp. 323-331
Author(s):  
Y B Fu ◽  
K Ritland

Abstract The relative importance of different modes of gene expression of viability genes contributing to inbreeding depression was investigated in the wild plant, Mimulus guttatus. Viability genes were identified by self-fertilizing 31 outbred plants, each heterozygous for three to nine unlinked allozyme markers, and analyzing segregation ratios of selfed progeny at maturity for deviations from 1:2:1 ratios. In this study, 24 linkages of viability genes to marker loci were detected. To infer the nature of gene action for these viability genes, a "model-free" graphical method was developed that examines the "space" of segregation ratios allowed by each of seven selection models (i.e., overdominance, complete recessivity, partial recessivity, additivity, partial dominance, complete dominance and underdominance). Using this method, we found that, of 24 linkages detected, 18 were consistent with either partial dominance, complete dominance or underdominance. Six were consistent with either partial recessivity, complete recessivity or overdominance. This finding indicates that, in these chromosomal segments identified by allozyme markers, partial dominance plays the predominant role in inbreeding depression. This is inconsistent with either the dominance or overdominance hypotheses proposed to account for inbreeding depression.


eLife ◽  
2019 ◽  
Vol 8 ◽  
Author(s):  
Jered M Wendte ◽  
Yinwen Zhang ◽  
Lexiang Ji ◽  
Xiuling Shi ◽  
Rashmi R Hazarika ◽  
...  

In many plant species, a subset of transcribed genes are characterized by strictly CG-context DNA methylation, referred to as gene body methylation (gbM). The mechanisms that establish gbM are unclear, yet flowering plant species naturally without gbM lack the DNA methyltransferase, CMT3, which maintains CHG (H = A, C, or T) and not CG methylation at constitutive heterochromatin. Here, we identify the mechanistic basis for gbM establishment by expressing CMT3 in a species naturally lacking CMT3. CMT3 expression reconstituted gbM through a progression of de novo CHG methylation on expressed genes, followed by the accumulation of CG methylation that could be inherited even following loss of the CMT3 transgene. Thus, gbM likely originates from the simultaneous targeting of loci by pathways that promote euchromatin and heterochromatin, which primes genes for the formation of stably inherited epimutations in the form of CG DNA methylation.


2016 ◽  
Vol 23 (2) ◽  
pp. 89-102
Author(s):  
Kuldeep Negi ◽  
Vandana Tiwari ◽  
Puran Mehta ◽  
Rajni Rawat ◽  
Saraswati Ojha ◽  
...  

Uttarakhand is a store house of plant genetic resources of several crop groups including ornamentals and seasonal flowering plant species. A wide range of seasonal flowering plants are being grown in the region because of its various and favourable agro-geo climatic zones. Ornamental plant enhances aesthetic value of our environment. There are 8 developmental blocks and 1082 villages in district Nainital of Uttarakhand. Nainital district, is a part of Kumaun region of Uttarakhand. It lies between 29?0.1' to 29?36' 21'' N latitude and 78?50' 53'' to 80?06' E longitude. More than 7.62 lakh population reside in 4064 km2 of geographical area of district Nainital. The district falls under sub-tropical to temperate zones. During the course of field survey (2013-2015), we came across wide range of seasonal flowering plants mostly belong to exotic origin being grown in the home gardens of natives of the region situated in different agro-ecological niches. The present study highlighted a total of 150 seasonal flowering plants with 120 genera belonging to 50 families. These were arranged alphabetically with botanical names followed by vernacular and trade name, family, origin or native place, nature, season with appropriate remarks of variation in shape, size and colour, method of propagation with economic status.


Author(s):  
Timothy S. George ◽  
◽  
Lawrie K. Brown ◽  
A. Glyn Bengough ◽  
◽  
...  

Root hairs are found on most terrestrial flowering plant species. They form from epidermal cells at a predetermined distance behind the growing root tip in three main patterns. Their presence, pattern, length, density and function are genetically controlled and numerous genes are expressed solely in root hairs. Their growth and proliferation are attenuated by the environment and root hairs growing in soil are generally shorter and less dense than those in laboratory studies. Root hairs have a number of functions including anchorage, root soil contact and bracing to enable roots to penetrate hard soils. However, their primary function is acquisition of nutrients and water, in particular phosphate. They are the site of transporters, exudation of active compounds and infection point of symbiotic microbial interactions. They have a profound effect on rhizosphere characteristics and are a potentially useful target for breeding crops for future agricultural sustainability.


Koedoe ◽  
1977 ◽  
Vol 20 (1) ◽  
Author(s):  
B.L. Penzhorn

Additions to the check list of flowering plants of the Mountain Zebra National Park. Thirteen additional flowering plant species are reported from the Mountain Zebra National Park, increasing the total reported to 371 species.


2018 ◽  
Vol 9 (1) ◽  
pp. 587-597
Author(s):  
Raúl Badillo‐Montaño ◽  
Armando Aguirre ◽  
Miguel A. Munguía‐Rosas

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