Mapping-by-sequencing using NGS-based 3′-MACE-Seq reveals a new mutant allele of the essential nodulation gene Sym33 (IPD3) in pea (Pisum sativum L.) oleh Aleksandr I. Zhernakov, Oksana Y. Shtark, Olga A. Kulaeva, Jaroslava V. Fedorina, Alexey M. Afonin, Anna B. Kitaeva, Viktor E. Tsyganov, Fabian Afonso-Grunz, Klaus Hoffmeier, Björn Rotter, Peter Winter, Igor A. Tikhonovich, Vladimir A. Zhukov