Genes - Gene list

◎Search condition : Character=[developmental regulation (moltinism,voltinism)] ( 1-7 of 7) are displayed.

Symbol	Chr.No	Map	Name	Explanation	Allele
Dh	11	0	diapause hormone and pheromone biosynthesis-activating neuropeptide (DH-PBAN)	Spontaneous;Diapause hormone of the silkworm PBAN, Dh^A, Dh^B and Dh^Cwith diffirent size in intron-5.	Dh^A , Dh^B , Dh^C
Lm	1	2	Late maturity	Spontaneous;larval maturity deferred, thus producing a larger body size; also affect, to a marked extent, voltinism, moltinism and cocoon weight; Lme(伴性早熟, early maturity).
M	6	24.1	Moltinism	Spontaneous;normal standard is tetra-molter: M3(3眠, Trimolting) larvae mature after three molts, most common type in primitive races and in B. mandarina, physiologically the fourth instar of normal tetramolters might be omittedjudging from changing patterns of hemolymph protein components in larval stage throughout: M5(5眠, pentamolting) recessive and possibly repeats fourth instar of the normal.See also rt.	M³ , M⁵
mod	11	27.4		Spontaneous;larvae mature after two molts, tends to produce trimolters and prothetely (rarely metathetely).
Ptth	22	5.8	prothoracicotropic hormone	Spontaneous; a brain secretory peptide stimulating prothoracic glands to synthesize and release ecdysone; on the basis of variance in molecular size of DNA, PTTH-producing gene can be grouped into three; PtthA smallest, PtthB intermediate, PtthC largest.	Ptth^A , Ptth^B , Ptth^C
rt	7	9	recessive trimolting	Spontaneous;larvae mature after three molts; changing pattern of hemolymph protein indicates that the fourth and the fifth instar of normal tetramolter are combined with in the last fourth instar of rt larva; feeding cycle different from that of M3. See also mod.
V	6	42.6	Voltinism	Spontaneous;Bivoltine as normal allele; univoltine(V1, 1 化性) caused by enhanced production of diapausing hormone (DH); multivoltine(V3, 多化性) caused by reduced production of DH; affected to a great extent by Lm alleles(1-2.0): Uptake of 3-hydroxykynurenine by the ovaries of non-diapausing egg layers are in diffusion fashion instead of active transport by the diapausing egg laying ones.	V¹ , V² , V³