scholarly journals Genetic diversity of arboreal cotton populations of the Brazilian semiarid: a remnant primary gene pool for cotton cultivars

2017 ◽  
Vol 16 (3) ◽  
Author(s):  
I.P.P. de Menezes ◽  
L.V. Hoffmann ◽  
T.H. de Lima ◽  
A.R. da Silva ◽  
V.S. Lucena ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Gene Pool ◽  
Brazilian Semiarid ◽  
Primary Gene Pool ◽  
Primary Gene

scholarly journals Eco-Geography of Feral Cotton: A Missing Piece in the Puzzle of Gene Flow Dynamics Among Members of Gossypium hirsutum Primary Gene Pool

2021 ◽  
Vol 9 ◽  
Author(s):  
Valeria Alavez ◽  
Ángela P. Cuervo-Robayo ◽  
Enrique Martínez-Meyer ◽  
Ana Wegier
Keyword(s):  
Genetic Diversity ◽  
Gene Flow ◽  
Gossypium Hirsutum ◽  
Gene Pool ◽  
Ecological Niche Modeling ◽  
Natural Fiber ◽  
Center Of Origin ◽  
Genetic Diversity And Structure ◽  
Primary Gene Pool ◽  
Primary Gene

Mexico is the center of origin and genetic diversity of upland cotton (Gossypium hirsutum L.), the most important source of natural fiber in the world. Currently, wild and domesticated populations (including genetically modified [GM] varieties) occur in this country and gene flow among them has shaped the species’ genetic diversity and structure, setting a complex and challenging scenario for its conservation. Moreover, recent gene flow from GM cultivars to wild Mexican cotton populations has been reported since 2011. In situ conservation of G. hirsutum requires knowledge about the extent of its geographic distribution, both wild and domesticated, as well as the possible routes and mechanisms that contribute to gene flow between the members of the species wild-to-domesticated continuum (i.e., the primary gene pool). However, little is known about the distribution of feral populations that could facilitate gene flow by acting as bridges. In this study, we analyzed the potential distribution of feral cotton based on an ecological niche modeling approach and discussed its implications in the light of the distribution of wild and domesticated cotton. Then, we examined the processes that could be leading to the escape of seeds from the cultivated fields. Our results indicate that the climatic suitability of feral plants in the environmental and geographic space is broad and overlaps with areas of wild cotton habitat and crop fields, suggesting a region that could bridge cultivated cotton and its wild relatives by allowing gene flow between them. This study provides information for management efforts focused on the conservation of wild populations, native landraces, and non-GM domesticated cotton at its center of origin and genetic diversity.

Synthetic Hexaploids: Harnessing Species of the Primary Gene Pool for Wheat Improvement

2013 ◽  
pp. 35-122 ◽  
Author(s):  
Francis C. Ogbonnaya ◽  
Osman Abdalla ◽  
Abdul Mujeeb-Kazi ◽  
Alvina G. Kazi ◽  
Steven S. Xu ◽  
...  
Keyword(s):  
Gene Pool ◽  
Wheat Improvement ◽  
Primary Gene Pool ◽  
Synthetic Hexaploids ◽  
Primary Gene

scholarly journals Diversification of primary gene pool through introgression of resistance to foliar diseases from synthetic amphidiploids to cultivated groundnut (Arachis hypogaea L.)

2014 ◽  
Vol 2 (2-3) ◽  
pp. 110-119 ◽  
Author(s):  
Varsha Kumari ◽  
M.V.C. Gowda ◽  
Vinod Tasiwal ◽  
Manish K. Pandey ◽  
Ramesh S. Bhat ◽  
...  
Keyword(s):  
Arachis Hypogaea ◽  
Gene Pool ◽  
Foliar Diseases ◽  
Arachis Hypogaea L ◽  
Primary Gene Pool ◽  
Primary Gene

Phylogenomic analysis points to a South American origin of Manihot and illuminates the primary gene pool of cassava

2021 ◽  
Author(s):  
Marcelo F. Simon ◽  
J. Moises F Mendoza ◽  
Hsiao‐Lei Liu ◽  
Márcio Lacerda Lopes Martins ◽  
Sergei V. Drovetski ◽  
...  
Keyword(s):  
Gene Pool ◽  
Phylogenomic Analysis ◽  
South American ◽  
Primary Gene Pool ◽  
South American Origin ◽  
Primary Gene

The wild gene pool of globe artichoke

2015 ◽  
Vol 62 (1-2) ◽  
pp. 33-38 ◽  
Author(s):  
Aaron Rottenberg
Keyword(s):  
Molecular Markers ◽  
Gene Pool ◽  
Mediterranean Basin ◽  
Molecular Genetic ◽  
Globe Artichoke ◽  
Cynara Cardunculus ◽  
Primary Gene Pool ◽  
The Mediterranean ◽  
Primary Gene ◽  
The Mediterranean Basin

Globe artichoke is an important vegetable of the Mediterranean basin. Its primary gene pool (GP1) consists of wild types ofCynara cardunculus. Crosses between the wild types and the cultivars (artichoke and cardoon) are fully fertile. In accordance, analyses of molecular markers revealed high genetic identity between the wild types and the cultivars. Hence, all these taxa are grouped together as conspecific varieties withinC.cardunculus. Several other wildCynaraspecies thrive in the Mediterranean basin. Of these,C. syriaca,C. algarbiensis,C. baeticaandC. humiliswere tested and found to be part of the secondary gene pool (GP2) of artichoke, as they were rather difficult to cross with either wild or cultivatedC. cardunculusand the few hybrids obtained were semi-sterile. In accordance, molecular genetic markers suggest that these wildCynaraspecies indeed diverged fromC. cardunculus. Four additionalCynaraspecies thrive in the Mediterranean basin, namelyC. cornigera,C. cyrenaica,C. tournefortiiandC. makrisii. There is no information on the crossability of these four species with artichoke, but molecular markers suggest that they may also belong to the secondary gene pool of the crop. Considering some attractive, variable characteristics of each of the GP2 species, such as earliness, albinism, dwarfism and diverse flavors, these wild species might be of great interest for artichoke breeders.

Cross Fertility of Australian Accessions of Wild Mungbean (Vigna radiata ssp. sublobata) with Green Gram (V. radiata ssp. radiata) and Black Gram (V. mungo)

1999 ◽  
Vol 47 (4) ◽  
pp. 601 ◽  
Author(s):  
C. J. Lambrides ◽  
A. T. James ◽  
R. J. Lawn ◽  
R. W. Williams
Keyword(s):  
Vigna Radiata ◽  
Gene Pool ◽  
Seed Set ◽  
Green Gram ◽  
Black Gram ◽  
Indigenous Australian ◽  
Poor Seed ◽  
Primary Gene Pool ◽  
Asiatic Vigna ◽  
Primary Gene

The position of Australian accessions of wild mungbean (Vigna radiata ssp. sublobata) in the Asiatic Vigna gene pool was examined by assessing their cross fertility with the green gram cultigen (Vigna radiata ssp. radiata) and black gram (Vigna mungo). No difficulties were encountered in obtaining F 1 and backcross seed in crosses with green gram. The hybrid progenies were vegetatively vigorous and fully fertile. Inheritance of traits appeared normal and, where direct comparisons were possible, consistent with crosses within the cultigen. Inheritance of a new seed mottling gene is presented and several linked traits were found. Crosses with black gram proved difficult to achieve, and the resulting hybrid seed showed varying degrees of viability. Individuals that germinated were weak, and if they survived to flower, possessed low pollen fertility and poor seed set. It was concluded that indigenous Australian accessions of wild mungbean belong to the primary gene pool of Vigna radiata.

Population structure of the primary gene pool of Oryza sativa in Thailand

2012 ◽  
Vol 60 (1) ◽  
pp. 335-353 ◽  
Author(s):  
Tonapha Pusadee ◽  
Barbara A. Schaal ◽  
Benjavan Rerkasem ◽  
Sansanee Jamjod
Keyword(s):  
Population Structure ◽  
Oryza Sativa ◽  
Gene Pool ◽  
Primary Gene Pool ◽  
Primary Gene

Screening the primary gene pool of field pea (Pisum sativum L. subsp. sativum) in Ethiopia for resistance against pea weevil (Bruchus pisorum L.)

2014 ◽  
Vol 62 (4) ◽  
pp. 525-538 ◽  
Author(s):  
Abel Teshome ◽  
Esayas Mendesil ◽  
Mulatu Geleta ◽  
Derege Andargie ◽  
Peter Anderson ◽  
...  
Keyword(s):  
Pisum Sativum ◽  
Gene Pool ◽  
Field Pea ◽  
Pisum Sativum L ◽  
Primary Gene Pool ◽  
Primary Gene ◽  
Bruchus Pisorum
Sign in / Sign up

Export Citation Format

Share Document