Fig. 2From: Ectopically expressing MdPIP1;3, an aquaporin gene, increased fruit size and enhanced drought tolerance of transgenic tomatoesMultiple alignments and the phylogenetic tree of MdPIP1;3. a Multiple alignments of MdPIP1;3. The black color highlights the same sequence, and the gray color identifies the sequence with only one amino acid difference. The solid lines with numbers, the arrows and the dash lines with lowercases show the transmembrane domains, the conserved NPA domains (Asn-Pro-Ala) and the signature sequences of plasma membrane water channel protein family, respectively. b The phylogenetic tree of MdPIP1;3. The GenBank accession numbers are MdPIP1;3 (KY952167), AtPIP1;4 (AEE81879.1), SoPIP1;2 (AAR23268.1), ZmPIP1;2 (NP_001104934.1), OsPIP1;3 (Q9SXF8.2) and PcPIP1;1 (BAB40142.1). The phylogenetic tree was constructed using the neighbor-joining method and a bootstrap test with 1000 iterations, using MEGA5.2 softwareBack to article page