Comparison of Chayote (Sechium edule (Jacq.) Sw.) Accessions from Mexico, Japan, and Myanmar Using Reproductive Characters and Microsatellite Markers

Author:

Shi Miao,Wang Yihang,Olvera-Vazquez Sergio Gabriel,Iñiguez Jorge Cadena,Thein Min San,Watanabe Kazuo N.ORCID

Abstract

Promoting neglected and underutilized crop species is a possible solution to deal with the complex challenges of global food security. Chayote is a Neglected and Underutilized Cucurbit Species (NUCuS), which is recognized as a fruit vegetable in Latin America and is widely grown in Asia and Africa. However, basic biological knowledge about the crop is insufficient in scientific sources, especially outside of its center of origin. In this study, limited observations on reproductive characters were conducted, differentiating accessions from Mexico, Japan, and Myanmar. Cytological evaluation among Mexican and Japanese accessions showed that the relative nuclear DNA content is 1.55 ± 0.05 pg, the estimated genome size is 1511 at 2C/Mbp, and the observed mitotic chromosomal number is 2n = 28. The genetic diversity of 21 chayote accessions was also examined using six microsatellite markers. A global low genetic heterozygosity (Ho = 0.286 and He = 0.408) and three genetic groups were detected. The results established the basis to provide insights into chayote arrival history in Asia by looking at the crop’s reproductive morphology, cytology, and genetic diversity status outside its origin center. This could help in developing sustainable utilization and conservation programs for chayote.

Funder

Japanese Society for the Promotion of Science

Publisher

MDPI AG

Subject

Plant Science,Ecology,Ecology, Evolution, Behavior and Systematics

Reference73 articles.

1. Global Biodiversity Conservation Priorities;Brooks;Science,2006

2. Feledyn-Szewczyk, B., Kuś, J., Stalenga, J., Berbeć, A.K., and Radzikowski, P. (2016). Organic Farming-A Promising Way of Food Production, IntechOpen.

3. Collins, W.W., and Qualset, C.O. (1998). Biodiversity in Agroecosystems, CRC Press.

4. The potential for underutilized crops to improve security of food production;Mayes;J. Exp. Bot.,2012

5. A review of the Cucurbitaceae;Jeffrey;Bot. J. Linn. Soc.,1980

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