干旱区生态环境知识资源中心(Arid): Exploring genetic diversity of lowland avocado (Persea americana Mill.) as a genetic reservoir for breeding

Arid

DOI	10.1007/s10722-021-01238-w
	Exploring genetic diversity of lowland avocado (Persea americana Mill.) as a genetic reservoir for breeding
	Sandoval-Castro, Eduardo; Peraza-Magallanes, Ayesha Y.; Dodd, Richard S.; Ashworth, Vanessa E. T. M.; Cruz-Mendivil, Abraham; Calderon-Vazquez, Carlos L.
通讯作者	Calderon-Vazquez, CL (corresponding author), Inst Politecn Nacl, CONACyT, Unidad Sinaloa, Blvd Juan de Dios Batiz Paredes 250, Guasave 81000, Sinaloa, Mexico.
来源期刊	GENETIC RESOURCES AND CROP EVOLUTION
ISSN	0925-9864
EISSN	1573-5109
出版年	2021
卷号	68 期号:7 页码:2757-2766
英文摘要	The avocado (Persea americana Mill.) is highly valued worldwide for its desirable nutritional properties and broader applications in the oil and pharmaceutical industry. Despite northwestern Mexico is not considered as a region of the avocado origin, it possesses a high morphological diversity of avocado fruits and trees. In an effort to provide more information about the diversity present in this region and at the same time, to support a more efficient production of lowland avocado in a tropical semi desert climate, this study characterized the genetic diversity of avocado trees growing at northwestern Mexico. Genetic diversity was estimated by using eight microsatellite loci. 45 seed-derived trees, with contrasting fruit morphology were identified. Results showed a high level of genetic diversity with 11.5 alleles per locus, a polymorphic index content of 0.75, and observed and expected heterozygosity values of 0.58 and 0.79, respectively, these values were similar to those observed in germplasm banks and genotypes from centers of origin. Clustering analysis assigned local genotypes to six clusters but did not provide a clear separation among avocado races, suggesting that local genotypes are a result of racial hybridization. Interestingly, avocados from the Mexican race and the commercial variety Hass clustered into two different groups. Despite not being considered a center of origin, results confirm an extensive diversity in northwestern Mexico, encouraging further exploration and preservation of genotypes with desirable traits to future breeding programs for the selection of local genotypes adapted to a lowland tropical climate.
英文关键词	Avocado Genetic diversity Tropical germplasm
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000668483300001
WOS关键词	MARKERS ; SSR
WOS类目	Agronomy ; Plant Sciences
WOS研究方向	Agriculture ; Plant Sciences
来源机构	University of California, Berkeley
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352195
作者单位	[Sandoval-Castro, Eduardo; Cruz-Mendivil, Abraham] Inst Politecn Nacl, CONACyT, CIIDIR, Unidad Sinaloa, Blvd Juan de Dios Batiz Paredes 250, Guasave 81000, Sinaloa, Mexico; [Peraza-Magallanes, Ayesha Y.; Calderon-Vazquez, Carlos L.] Inst Politecn Nacl, CONACyT, Unidad Sinaloa, Blvd Juan de Dios Batiz Paredes 250, Guasave 81000, Sinaloa, Mexico; [Dodd, Richard S.] Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA; [Ashworth, Vanessa E. T. M.] Univ Calif Riverside, Dept Bot & Plant Sci, Riverside, CA 92521 USA
推荐引用方式 GB/T 7714	Sandoval-Castro, Eduardo,Peraza-Magallanes, Ayesha Y.,Dodd, Richard S.,et al. Exploring genetic diversity of lowland avocado (Persea americana Mill.) as a genetic reservoir for breeding[J]. University of California, Berkeley,2021,68(7):2757-2766.
APA	Sandoval-Castro, Eduardo,Peraza-Magallanes, Ayesha Y.,Dodd, Richard S.,Ashworth, Vanessa E. T. M.,Cruz-Mendivil, Abraham,&Calderon-Vazquez, Carlos L..(2021).Exploring genetic diversity of lowland avocado (Persea americana Mill.) as a genetic reservoir for breeding.GENETIC RESOURCES AND CROP EVOLUTION,68(7),2757-2766.
MLA	Sandoval-Castro, Eduardo,et al."Exploring genetic diversity of lowland avocado (Persea americana Mill.) as a genetic reservoir for breeding".GENETIC RESOURCES AND CROP EVOLUTION 68.7(2021):2757-2766.