Application of Plant Print Identification Technology in Salt-resistant Soybean Breeding
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Application of Plant Print Identification Technology in Salt‑resistant Soybean Breeding Yan Li1 · Xia Li2 · Zi‑qi Chen3 · Ying Ma4 · Guang‑yu Yang5 · Ying Zhang6 · Ming‑chun Sun6 · Li‑hong Zhang1 · Jin‑meng Chu4 · Jing‑mei Lu1 · Jun Zhu7 · Ji‑hong You1 Received: 27 May 2019 / Accepted: 17 August 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract This study aimed to employ plant print identification to screen a wild-type soybean (Glycine soja Seib. and Zucc.) and then hybridize it with a cultivated soybean (Glycine max (L.) Merr.) (Lu, Chin Sci Bull 43:2074–2078, 1998) with a view to produce a salt-resistant variety. Scanning electron microscopy, optical microscopy, and paraffin sectioning were employed to compare two varieties of wild soybeans (#028 and #029) captured from different eco-environments, and the one with a salt gland present –– wild soybean #029 – was chosen as the male parent for hybridization. Considering a soybean variety with low stem as female parent, hybridization was performed and a new variety of salt-resistant soybean resulted, Ji-Yu59, which opened up a new, cost-efficient way of soybean breeding. Under saline-alkali stress, our salt-tolerant wild soybean is anticipated to exhibit antagonism by evolving a series of salt-resistant structures, including a salt-containing vacuolar package and a salt gland. The salt gland would help eliminate salts from the soybean plant; upon maturity, a salt gland is known to be able to break up salts to release their respective ions, effectively reducing salt and alkali stress. Therefore, a wild soybean with salt gland is an excellent choice for the hybridization of salt-resistant soybean varieties. Keywords Glycine soja seib. and zucc. · Plant print identification · Salt-resistant structures · Salt gland · Salt-tolerant soybean breeding
Introduction
Yan Li, Xia Li, and Zi-qi Chen have contributed equally to the study. * Jing‑mei Lu [email protected] * Jun Zhu [email protected] * Ji‑hong You [email protected] 1
School of Life Sciences, Northeast Normal University, No. 5268, Renmin Street, Changchun 130024, Jilin Province, People’s Republic of China
2
Harbin Normal University, Harbin 150025, Heilongjiang Province, People’s Republic of China
3
Institute of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences (JAAS), Changchun 130124, People’s Republic of China
As one of the largest agrarian economies in the world, China is facing increasing threats from the expanding saline-alkali land areas, contraction of cultivable land areas, insufficient water resources, and growing environment degradation (Lu 4
College of Botany, Jilin University, No. 5333, Xian Road, Changchun 130062, Jilin Province, People’s Republic of China
5
Institute of Soybeans, Jilin Academy of Agricultural Science, Changchun 130033, Jilin Province, People’s Republic of China
6
College of Agricultural Science, Jilin Agricultural University, Changchun 130118, People’s Republic of China
7
The Institute of Forensic Science
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