000			03417nab|a22003977a|4500
001			66426
003			MX-TxCIM
005			20230831212238.0
008			20231s2023||||mx |||p|op||||00||0|eng|d
022			_a1664-462X (Online)
024	8		_ahttps://doi.org/10.3389/fpls.2023.1226072
040			_aMX-TxCIM
041			_aeng
100	1		_aLedesma, A. _931567
245	1	0	_aMolecular characterization of doubled haploid lines derived from different cycles of the Iowa Stiff Stalk Synthetic (BSSS) maize population
260			_bFrontiers Media S.A., _c2023. _aSwitzerland :
500			_aPeer review
500			_aOpen Access
520			_aMolecular characterization of a given set of maize germplasm could be useful for understanding the use of the assembled germplasm for further improvement in a breeding program, such as analyzing genetic diversity, selecting a parental line, assigning heterotic groups, creating a core set of germplasm and/or performing association analysis for traits of interest. In this study, we used single nucleotide polymorphism (SNP) markers to assess the genetic variability in a set of doubled haploid (DH) lines derived from the unselected Iowa Stiff Stalk Synthetic (BSSS) maize population, denoted as C0 (BSSS(R)C0), the seventeenth cycle of reciprocal recurrent selection in BSSS (BSSS(R)C17), denoted as C17 and the cross between BSSS(R)C0 and BSSS(R)C17 denoted as C0/C17. With the aim to explore if we have potentially lost diversity from C0 to C17 derived DH lines and observe whether useful genetic variation in C0 was left behind during the selection process since C0 could be a reservoir of genetic diversity that could be untapped using DH technology. Additionally, we quantify the contribution of the BSSS progenitors in each set of DH lines. The molecular characterization analysis confirmed the apparent separation and the loss of genetic variability from C0 to C17 through the recurrent selection process. Which was observed by the degree of differentiation between the C0_DHL versus C17_DHL groups by Wright’s F-statistics (FST). Similarly for the population structure based on principal component analysis (PCA) revealed a clear separation among groups of DH lines. Some of the progenitors had a higher genetic contribution in C0 compared with C0/C17 and C17 derived DH lines. Although genetic drift can explain most of the genetic structure genome-wide, phenotypic data provide evidence that selection has altered favorable allele frequencies in the BSSS maize population through the reciprocal recurrent selection program.
546			_aText in English
650		7	_aGenetic diversity (as resource) _2AGROVOC _92974
650		7	_aGenetic resources _2AGROVOC _91127
650		7	_aZea mays _2AGROVOC _91314
650		7	_aGenotyping _2AGROVOC _922057
650		7	_aDoubled haploids _2AGROVOC _929363
650		7	_aSingle nucleotide polymorphisms _2AGROVOC _910805
700	1		_aSales Ribeiro, F.A. _931568
700	1		_aUberti, A. _931569
700			_aEdwards, J. _910135
700	1		_aHearne, S. _8INT3287 _9912 _gGenetic Resources Program
700	1		_aFrei, U.K. _914407
700	1		_aLübberstedt, T. _98785
773	0		_tFrontiers in Plant Science _gv. 14, art. 1226072 _dSwitzerland : Frontiers Media S.A., 2023. _w56875 _x1664-462X
856	4		_yOpen Access through DSpace _uhttps://hdl.handle.net/10883/22694
942			_cJA _n0 _2ddc
999			_c66426 _d66418